## Output from detroit2.sas

Source
0 Graphs

```                 Stepwise selection methods on Detroit Homicide data                1
```
`             Forward Selection Procedure for Dependent Variable HOMICIDE`
```Step 1   Variable H_ARREST Entered  R-square = 0.93791544   C(p) =2216.6453643
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       1          3021.76628470    3021.76628470     166.18   0.0001
Error           11           200.02339223      18.18394475
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     127.22162580      8.00766827    4589.84309223     252.41   0.0001
H_ARREST      -1.25352393      0.09724029    3021.76628470     166.18   0.0001

Bounds on condition number:            1,            1
-------------------------------------------------------------------------------------

Step 2   Variable GUN_LIC Entered   R-square = 0.98950059   C(p) =369.38937925
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       2          3187.96277815    1593.98138908     471.22   0.0001
Error           10            33.82689877       3.38268988
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     103.65435246      4.82008401    1564.32885015     462.45   0.0001
GUN_LIC        0.01413727      0.00201691     166.19649346      49.13   0.0001
H_ARREST      -1.05746317      0.05041220    1488.40578697     440.01   0.0001

Bounds on condition number:      1.44479,      5.77916
-------------------------------------------------------------------------------------

Step 3   Variable H_EARN Entered    R-square = 0.99342188   C(p) =230.81634312
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       3          3200.59637019    1066.86545673     453.06   0.0001
Error            9            21.19330674       2.35481186
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP      59.40631338     19.52204071      21.80574806       9.26   0.0139
GUN_LIC        0.01613543      0.00189104     171.44204231      72.80   0.0001
H_ARREST      -0.72766743      0.14846622      56.56747267      24.02   0.0008
H_EARN         4.13239360      1.78408838      12.63359203       5.37   0.0458
```

```                 Stepwise selection methods on Detroit Homicide data                2
```
```Bounds on condition number:     18.00092,     104.9368
-------------------------------------------------------------------------------------

Step 4   Variable POLICE Entered    R-square = 0.99586599   C(p) =145.19846663
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       4          3208.47077154     802.11769289     481.79   0.0001
Error            8            13.31890538       1.66486317
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP      18.31455641     25.02895215       0.89142748       0.54   0.4852
POLICE         0.07843010      0.03606312       7.87440136       4.73   0.0614
GUN_LIC        0.01543980      0.00162190     150.87319423      90.62   0.0001
H_ARREST      -0.48904892      0.16619978      14.41525286       8.66   0.0186
H_EARN         3.66331664      1.51555167       9.72715793       5.84   0.0420

Bounds on condition number:     31.90641,     279.2531
-------------------------------------------------------------------------------------

Step 5   Variable UNEMP Entered     R-square = 0.99745366   C(p) = 90.28268650
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       5          3213.58591145     642.71718229     548.41   0.0001
Error            7             8.20376548       1.17196650
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP      -0.60298011     22.86871314       0.00081478       0.00   0.9797
POLICE         0.06955742      0.03055401       6.07387328       5.18   0.0569
UNEMP          0.37962566      0.18171233       5.11513990       4.36   0.0751
GUN_LIC        0.01767714      0.00173166     122.12725924     104.21   0.0001
H_ARREST      -0.34630081      0.15528445       5.82862721       4.97   0.0610
H_EARN         5.33304997      1.50188622      14.77720973      12.61   0.0093

Bounds on condition number:     39.56729,     435.2339
-------------------------------------------------------------------------------------

Step 6   Variable W_EARN Entered    R-square = 0.99926234   C(p) = 27.44404542
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       6          3219.41309539     536.56884923    1354.64   0.0001
Error            6             2.37658153       0.39609692
Total           12          3221.78967692
```
`                   Parameter        Standard          Type II`

```                 Stepwise selection methods on Detroit Homicide data                3
```
`   Variable         Estimate           Error   Sum of Squares          F   Prob>F`
```   INTERCEP     -16.72191178     13.94328480       0.56969594       1.44   0.2756
POLICE         0.03651373      0.01974175       1.35500999       3.42   0.1139
UNEMP          0.92651961      0.17745509      10.79776278      27.26   0.0020
GUN_LIC        0.02164077      0.00144269      89.12467396     225.01   0.0001
H_ARREST      -0.20545186      0.09745875       1.76027269       4.44   0.0796
H_EARN         1.13773641      1.39955248       0.26176188       0.66   0.4473
W_EARN         0.15280901      0.03984009       5.82718395      14.71   0.0086

Bounds on condition number:     86.90163,     1355.709
-------------------------------------------------------------------------------------

Step 7   Variable GOV_WRK Entered   R-square = 0.99958149   C(p) = 18.00299820
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       7          3220.44132617     460.06304660    1706.02   0.0001
Error            5             1.34835075       0.26967015
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -26.31464983     12.50981110       1.19323659       4.42   0.0894
POLICE         0.03851022      0.01632132       1.50132400       5.57   0.0648
UNEMP          1.06855981      0.16349470      11.51922294      42.72   0.0013
GUN_LIC        0.01873958      0.00190381      26.12789979      96.89   0.0002
H_ARREST      -0.16252910      0.08336514       1.02500545       3.80   0.1087
GOV_WRK        0.05727119      0.02932968       1.02823078       3.81   0.1083
H_EARN        -1.22414875      1.67230491       0.14450083       0.54   0.4970
W_EARN         0.18169826      0.03604861       6.85105463      25.41   0.0040

Bounds on condition number:     116.2615,     2601.032
-------------------------------------------------------------------------------------

Step 8   Variable MFG_WRK Entered   R-square = 0.99965337   C(p) = 17.42620640
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       8          3220.67290783     402.58411348    1441.96   0.0001
Error            4             1.11676909       0.27919227
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -21.89755715     13.62142280       0.72152234       2.58   0.1832
POLICE         0.03192350      0.01811341       0.86720922       3.11   0.1528
UNEMP          0.96292526      0.20279826       6.29448350      22.55   0.0090
MFG_WRK       -0.01274919      0.01399852       0.23158166       0.83   0.4139
GUN_LIC        0.01921375      0.00200588      25.61642995      91.75   0.0007
H_ARREST      -0.14780744      0.08635061       0.81802234       2.93   0.1621```

```                 Stepwise selection methods on Detroit Homicide data                4
```
```   GOV_WRK        0.07135685      0.03361251       1.25826692       4.51   0.1010
H_EARN        -1.61603623      1.75513583       0.23669229       0.85   0.4093
W_EARN         0.19800235      0.04081497       6.57060227      23.53   0.0083

Bounds on condition number:      129.397,     3600.186
-------------------------------------------------------------------------------------

Step 9   Variable NMFG_WRK Entered  R-square = 0.99975026   C(p) = 15.95289166
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       9          3220.98506187     357.88722910    1334.38   0.0001
Error            3             0.80461505       0.26820502
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -18.68810328     13.67814643       0.50065995       1.87   0.2653
POLICE         0.03030895      0.01781639       0.77619228       2.89   0.1875
UNEMP          0.83170669      0.23302945       3.41653329      12.74   0.0376
MFG_WRK       -0.02390563      0.01718107       0.51923842       1.94   0.2583
GUN_LIC        0.01815381      0.00219784      18.29828348      68.22   0.0037
H_ARREST      -0.17738661      0.08896479       1.06628250       3.98   0.1402
NMFG_WRK       0.02518400      0.02334392       0.31215404       1.16   0.3597
GOV_WRK        0.03563195      0.04671101       0.15606575       0.58   0.5011
H_EARN        -1.57507345      1.72067262       0.22473568       0.84   0.4275
W_EARN         0.17877459      0.04379450       4.46929755      16.66   0.0266

Bounds on condition number:     218.9953,     7088.015
-------------------------------------------------------------------------------------

Step10   Variable GUN_REG Entered   R-square = 0.99983159   C(p) = 15.03711140
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression      10          3221.24710913     322.12471091    1187.41   0.0008
Error            2             0.54256780       0.27128390
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -22.46928165     14.28428106       0.67125204       2.47   0.2564
POLICE         0.02816180      0.01805105       0.66029789       2.43   0.2591
UNEMP          0.87548597      0.23855876       3.65368975      13.47   0.0669
MFG_WRK       -0.03151905      0.01893634       0.75158484       2.77   0.2379
GUN_LIC        0.01904497      0.00238917      17.23821431      63.54   0.0154
GUN_REG       -0.00188573      0.00191868       0.26204725       0.97   0.4293
H_ARREST      -0.13697657      0.09846889       0.52495065       1.94   0.2988
NMFG_WRK       0.02564821      0.02348227       0.32363663       1.19   0.3888
GOV_WRK        0.06529333      0.05583704       0.37095140       1.37   0.3628
H_EARN        -3.05808582      2.29598553       0.48126587       1.77   0.3144```

```                 Stepwise selection methods on Detroit Homicide data                5
```
```   W_EARN         0.21235728      0.05574518       3.93680251      14.51   0.0625

Bounds on condition number:     248.4159,     10692.52
-------------------------------------------------------------------------------------

Step11   Variable W_MALE Entered    R-square = 0.99997210   C(p) = 12.00000000
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression      11          3221.69980484     292.88180044    3258.87   0.0137
Error            1             0.08987209       0.08987209
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -91.52569420     31.84848803       0.74222102       8.26   0.2132
POLICE         0.02409693      0.01054638       0.46918212       5.22   0.2626
UNEMP          0.57248851      0.19256088       0.79436893       8.84   0.2066
MFG_WRK       -0.05859736      0.01625916       1.16730659      12.99   0.1723
GUN_LIC        0.02136905      0.00172143      13.84897661     154.10   0.0512
GUN_REG       -0.00333585      0.00127947       0.61091360       6.80   0.2332
H_ARREST      -0.08272431      0.06161572       0.16199740       1.80   0.4076
W_MALE         0.00009005      0.00004012       0.45269571       5.04   0.2668
NMFG_WRK       0.04964304      0.01723305       0.74579155       8.30   0.2127
GOV_WRK        0.18120758      0.06083004       0.79751956       8.87   0.2062
H_EARN        -6.09646172      1.89185727       0.93326245      10.38   0.1916
W_EARN         0.30522415      0.05236046       3.05390667      33.98   0.1082

Bounds on condition number:     896.0561,     36604.48
-------------------------------------------------------------------------------------

All variables have been entered into the model.```
```
Summary of Forward Selection Procedure for Dependent Variable HOMICIDE

Variable   Number   Partial     Model
Step    Entered        In      R**2      R**2        C(p)           F   Prob>F
Label```
```      1    H_ARREST        1    0.9379    0.9379   2216.6454    166.1777   0.0001
% homicides cleared by arrests
2    GUN_LIC         2    0.0516    0.9895    369.3894     49.1315   0.0001
Handgun licences per 100,000 pop
3    H_EARN          3    0.0039    0.9934    230.8163      5.3650   0.0458
Average hourly earnings
4    POLICE          4    0.0024    0.9959    145.1985      4.7298   0.0614
Full-time police per 100,000 pop
5    UNEMP           5    0.0016    0.9975     90.2827      4.3646   0.0751
% unemployed in the pop
6    W_EARN          6    0.0018    0.9993     27.4440     14.7115   0.0086
Average weekly earnings
7    GOV_WRK         7    0.0003    0.9996     18.0030      3.8129   0.1083```

```                 Stepwise selection methods on Detroit Homicide data                6
```
```          Government workers (000)
8    MFG_WRK         8    0.0001    0.9997     17.4262      0.8295   0.4139
Manufacturing workers (000)
9    NMFG_WRK        9    0.0001    0.9998     15.9529      1.1639   0.3597
Non-manufacturing workers (000)
10    GUN_REG        10    0.0001    0.9998     15.0371      0.9660   0.4293
Handgun registrations per 100,000 pop
11    W_MALE         11    0.0001    1.0000     12.0000      5.0371   0.2668
White males in the population```

```                 Stepwise selection methods on Detroit Homicide data                7
```
`           Backward Elimination Procedure for Dependent Variable HOMICIDE`
```Step 0    All Variables Entered     R-square = 0.99997210   C(p) = 12.00000000
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression      11          3221.69980484     292.88180044    3258.87   0.0137
Error            1             0.08987209       0.08987209
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -91.52569420     31.84848803       0.74222102       8.26   0.2132
POLICE         0.02409693      0.01054638       0.46918212       5.22   0.2626
UNEMP          0.57248851      0.19256088       0.79436893       8.84   0.2066
MFG_WRK       -0.05859736      0.01625916       1.16730659      12.99   0.1723
GUN_LIC        0.02136905      0.00172143      13.84897661     154.10   0.0512
GUN_REG       -0.00333585      0.00127947       0.61091360       6.80   0.2332
H_ARREST      -0.08272431      0.06161572       0.16199740       1.80   0.4076
W_MALE         0.00009005      0.00004012       0.45269571       5.04   0.2668
NMFG_WRK       0.04964304      0.01723305       0.74579155       8.30   0.2127
GOV_WRK        0.18120758      0.06083004       0.79751956       8.87   0.2062
H_EARN        -6.09646172      1.89185727       0.93326245      10.38   0.1916
W_EARN         0.30522415      0.05236046       3.05390667      33.98   0.1082

Bounds on condition number:     896.0561,     36604.48
-------------------------------------------------------------------------------------

Step 1   Variable H_ARREST Removed  R-square = 0.99992182   C(p) = 11.80253302
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression      10          3221.53780743     322.15378074    2558.10   0.0004
Error            2             0.25186949       0.12593474
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP    -116.33857317     30.70374955       1.80804903      14.36   0.0631
POLICE         0.02474262      0.01247130       0.49569387       3.94   0.1857
UNEMP          0.58404343      0.22771635       0.82841396       6.58   0.1243
MFG_WRK       -0.06676828      0.01784762       1.76248443      14.00   0.0646
GUN_LIC        0.02260555      0.00172157      21.71326498     172.42   0.0057
GUN_REG       -0.00424564      0.00128471       1.37537698      10.92   0.0806
W_MALE         0.00011118      0.00004369       0.81564896       6.48   0.1259
NMFG_WRK       0.05074124      0.02037664       0.78091247       6.20   0.1304
GOV_WRK        0.23043273      0.05745780       2.02551734      16.08   0.0569
H_EARN        -7.43075076      1.90559767       1.91491073      15.21   0.0599
W_EARN         0.35235235      0.04599029       7.39209801      58.70   0.0166

Bounds on condition number:     758.1428,     24113.14```

```                 Stepwise selection methods on Detroit Homicide data                8
```
```-------------------------------------------------------------------------------------

Step 2   Variable POLICE Removed    R-square = 0.99976797   C(p) = 15.31808175
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       9          3221.04211356     357.89356817    1436.24   0.0001
Error            3             0.74756336       0.24918779
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP    -122.42967222     42.97341881       2.02255488       8.12   0.0652
UNEMP          0.53365411      0.31832193       0.70034712       2.81   0.1922
MFG_WRK       -0.08196236      0.02267681       3.25530625      13.06   0.0364
GUN_LIC        0.02420871      0.00213834      31.93864965     128.17   0.0015
GUN_REG       -0.00488870      0.00174869       1.94753942       7.82   0.0681
W_MALE         0.00012906      0.00006013       1.14808754       4.61   0.1211
NMFG_WRK       0.05783119      0.02821886       1.04657927       4.20   0.1328
GOV_WRK        0.26218086      0.07762601       2.84259017      11.41   0.0432
H_EARN        -8.77947969      2.50416116       3.06294895      12.29   0.0393
W_EARN         0.40186821      0.05433811      13.62965855      54.70   0.0051

Bounds on condition number:     725.8563,     19190.98
-------------------------------------------------------------------------------------

Step 3   Variable UNEMP Removed     R-square = 0.99955059   C(p) = 21.11079192
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       8          3220.34176644     402.54272081    1112.07   0.0001
Error            4             1.44791048       0.36197762
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP    -173.78732365     36.32262349       8.28635419      22.89   0.0087
MFG_WRK       -0.11660290      0.01126005      38.81679058     107.24   0.0005
GUN_LIC        0.02547560      0.00241093      40.41671418     111.66   0.0005
GUN_REG       -0.00574839      0.00201495       2.94607181       8.14   0.0463
W_MALE         0.00020775      0.00004530       7.61465905      21.04   0.0101
NMFG_WRK       0.09185639      0.02362974       5.46994008      15.11   0.0177
GOV_WRK        0.33620857      0.07694697       6.91060689      19.09   0.0120
H_EARN       -10.49787869      2.75371886       5.26072528      14.53   0.0189
W_EARN         0.44897820      0.05605352      23.22343277      64.16   0.0013

Bounds on condition number:     283.5643,     9479.216
-------------------------------------------------------------------------------------

All variables left in the model are significant at the 0.1000 level.```

```                 Stepwise selection methods on Detroit Homicide data                9
```
```      Summary of Backward Elimination Procedure for Dependent Variable HOMICIDE

Variable   Number   Partial     Model
Step    Removed        In      R**2      R**2        C(p)           F   Prob>F
Label```
```      1    H_ARREST       10    0.0001    0.9999     11.8025      1.8025   0.4076
% homicides cleared by arrests
2    POLICE          9    0.0002    0.9998     15.3181      3.9361   0.1857
Full-time police per 100,000 pop
3    UNEMP           8    0.0002    0.9996     21.1108      2.8105   0.1922
% unemployed in the pop```

```                 Stepwise selection methods on Detroit Homicide data               10
```
`                 Stepwise Procedure for Dependent Variable HOMICIDE`
```Step 1   Variable H_ARREST Entered  R-square = 0.93791544   C(p) =2216.6453643
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       1          3021.76628470    3021.76628470     166.18   0.0001
Error           11           200.02339223      18.18394475
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     127.22162580      8.00766827    4589.84309223     252.41   0.0001
H_ARREST      -1.25352393      0.09724029    3021.76628470     166.18   0.0001

Bounds on condition number:            1,            1
-------------------------------------------------------------------------------------

Step 2   Variable GUN_LIC Entered   R-square = 0.98950059   C(p) =369.38937925
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       2          3187.96277815    1593.98138908     471.22   0.0001
Error           10            33.82689877       3.38268988
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     103.65435246      4.82008401    1564.32885015     462.45   0.0001
GUN_LIC        0.01413727      0.00201691     166.19649346      49.13   0.0001
H_ARREST      -1.05746317      0.05041220    1488.40578697     440.01   0.0001

Bounds on condition number:      1.44479,      5.77916
-------------------------------------------------------------------------------------

Step 3   Variable H_EARN Entered    R-square = 0.99342188   C(p) =230.81634312
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       3          3200.59637019    1066.86545673     453.06   0.0001
Error            9            21.19330674       2.35481186
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP      59.40631338     19.52204071      21.80574806       9.26   0.0139
GUN_LIC        0.01613543      0.00189104     171.44204231      72.80   0.0001
H_ARREST      -0.72766743      0.14846622      56.56747267      24.02   0.0008
H_EARN         4.13239360      1.78408838      12.63359203       5.37   0.0458
```

```                 Stepwise selection methods on Detroit Homicide data               11
```
```Bounds on condition number:     18.00092,     104.9368
-------------------------------------------------------------------------------------

Step 4   Variable POLICE Entered    R-square = 0.99586599   C(p) =145.19846663
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       4          3208.47077154     802.11769289     481.79   0.0001
Error            8            13.31890538       1.66486317
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP      18.31455641     25.02895215       0.89142748       0.54   0.4852
POLICE         0.07843010      0.03606312       7.87440136       4.73   0.0614
GUN_LIC        0.01543980      0.00162190     150.87319423      90.62   0.0001
H_ARREST      -0.48904892      0.16619978      14.41525286       8.66   0.0186
H_EARN         3.66331664      1.51555167       9.72715793       5.84   0.0420

Bounds on condition number:     31.90641,     279.2531
-------------------------------------------------------------------------------------

Step 5   Variable UNEMP Entered     R-square = 0.99745366   C(p) = 90.28268650
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       5          3213.58591145     642.71718229     548.41   0.0001
Error            7             8.20376548       1.17196650
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP      -0.60298011     22.86871314       0.00081478       0.00   0.9797
POLICE         0.06955742      0.03055401       6.07387328       5.18   0.0569
UNEMP          0.37962566      0.18171233       5.11513990       4.36   0.0751
GUN_LIC        0.01767714      0.00173166     122.12725924     104.21   0.0001
H_ARREST      -0.34630081      0.15528445       5.82862721       4.97   0.0610
H_EARN         5.33304997      1.50188622      14.77720973      12.61   0.0093

Bounds on condition number:     39.56729,     435.2339
-------------------------------------------------------------------------------------

Step 6   Variable W_EARN Entered    R-square = 0.99926234   C(p) = 27.44404542
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       6          3219.41309539     536.56884923    1354.64   0.0001
Error            6             2.37658153       0.39609692
Total           12          3221.78967692
```
`                   Parameter        Standard          Type II`

```                 Stepwise selection methods on Detroit Homicide data               12
```
`   Variable         Estimate           Error   Sum of Squares          F   Prob>F`
```   INTERCEP     -16.72191178     13.94328480       0.56969594       1.44   0.2756
POLICE         0.03651373      0.01974175       1.35500999       3.42   0.1139
UNEMP          0.92651961      0.17745509      10.79776278      27.26   0.0020
GUN_LIC        0.02164077      0.00144269      89.12467396     225.01   0.0001
H_ARREST      -0.20545186      0.09745875       1.76027269       4.44   0.0796
H_EARN         1.13773641      1.39955248       0.26176188       0.66   0.4473
W_EARN         0.15280901      0.03984009       5.82718395      14.71   0.0086

Bounds on condition number:     86.90163,     1355.709
-------------------------------------------------------------------------------------

Step 7   Variable H_EARN Removed    R-square = 0.99918109   C(p) = 28.35665032
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       5          3219.15133351     643.83026670    1708.20   0.0001
Error            7             2.63834341       0.37690620
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP     -15.20438951     13.47887216       0.47958341       1.27   0.2965
POLICE         0.03278158      0.01872961       1.15461126       3.06   0.1235
UNEMP          0.98859738      0.15625561      15.08693230      40.03   0.0004
GUN_LIC        0.02196937      0.00135094      99.67700048     264.46   0.0001
H_ARREST      -0.21439076      0.09446148       1.94149325       5.15   0.0575
W_EARN         0.17812060      0.02424528      20.34263180      53.97   0.0002

Bounds on condition number:      45.5273,     569.8433
-------------------------------------------------------------------------------------

Step 8   Variable W_MALE Entered    R-square = 0.99957603   C(p) = 16.19876482
```
`                   DF         Sum of Squares      Mean Square          F   Prob>F`
```   Regression       6          3220.42373222     536.73728870    2357.65   0.0001
Error            6             1.36594470       0.22765745
Total           12          3221.78967692
```
```                   Parameter        Standard          Type II
Variable         Estimate           Error   Sum of Squares          F   Prob>F```
```   INTERCEP       5.67086602     13.70060987       0.03900325       0.17   0.6933
POLICE         0.03683079      0.01465679       1.43756180       6.31   0.0457
UNEMP          1.08915739      0.12867340      16.31118899      71.65   0.0001
GUN_LIC        0.01819450      0.00191100      20.63679493      90.65   0.0001
H_ARREST      -0.18400319      0.07453076       1.38759078       6.10   0.0485
W_MALE        -0.00003798      0.00001606       1.27239871       5.59   0.0560
W_EARN         0.14310790      0.02396658       8.11702731      35.65   0.0010
```

```                 Stepwise selection methods on Detroit Homicide data               13
```
```Bounds on condition number:     56.71134,     1243.763
-------------------------------------------------------------------------------------

All variables left in the model are significant at the 0.1500 level.
No other variable met the 0.1500 significance level for entry into the model.```
```
Summary of Stepwise Procedure for Dependent Variable HOMICIDE

Variable        Number   Partial    Model
Step   Entered Removed     In      R**2     R**2      C(p)          F   Prob>F
Label```
```      1   H_ARREST             1    0.9379   0.9379 2216.6454   166.1777   0.0001
% homicides cleared by arrests
2   GUN_LIC              2    0.0516   0.9895  369.3894    49.1315   0.0001
Handgun licences per 100,000 pop
3   H_EARN               3    0.0039   0.9934  230.8163     5.3650   0.0458
Average hourly earnings
4   POLICE               4    0.0024   0.9959  145.1985     4.7298   0.0614
Full-time police per 100,000 pop
5   UNEMP                5    0.0016   0.9975   90.2827     4.3646   0.0751
% unemployed in the pop
6   W_EARN               6    0.0018   0.9993   27.4440    14.7115   0.0086
Average weekly earnings
7           H_EARN       5    0.0001   0.9992   28.3567     0.6609   0.4473
Average hourly earnings
8   W_MALE               6    0.0004   0.9996   16.1988     5.5891   0.0560
White males in the population```

```                 Stepwise selection methods on Detroit Homicide data               14
```
```  N = 13     Regression Models for Dependent Variable: HOMICIDE

```
```        R-square     C(p)      MSE Variables in Model
In
```
```      1 0.937915   2216.6   18.184 H_ARREST
1 0.929414   2521.4   20.674 POLICE
1 0.917869   2935.3   24.055 GOV_WRK
1 0.913811   3080.7   25.244 NMFG_WRK
1 0.907399   3310.6   27.122 W_MALE
----------------------------------------
2 0.989501    369.4    3.383 GUN_LIC H_ARREST
2 0.986103    491.2    4.477 UNEMP W_MALE
2 0.983098    598.9    5.445 POLICE GOV_WRK
2 0.982776    610.5    5.549 GUN_REG H_ARREST
2 0.980613    688.0    6.246 MFG_WRK NMFG_WRK
--------------------------------------------------
3 0.997898  70.3666    0.753 UNEMP GUN_LIC W_EARN
3 0.993422    230.8    2.355 GUN_LIC H_ARREST H_EARN
3 0.992847    251.4    2.561 POLICE GUN_LIC H_ARREST
3 0.992704    256.6    2.612 MFG_WRK GUN_LIC W_EARN
3 0.992228    273.6    2.782 GUN_LIC H_ARREST W_EARN
---------------------------------------------------------
4 0.998823  39.2039    0.474 UNEMP GUN_LIC H_ARREST W_EARN
4 0.998578  47.9595    0.572 POLICE UNEMP GUN_LIC W_EARN
4 0.998373  55.3093    0.655 UNEMP GUN_LIC W_MALE W_EARN
4 0.998321  57.2014    0.676 UNEMP GUN_LIC GOV_WRK W_EARN
4 0.998019  68.0042    0.798 UNEMP GUN_LIC NMFG_WRK W_EARN
---------------------------------------------------------------
5 0.999186  28.1953    0.375 POLICE UNEMP GUN_LIC GOV_WRK W_EARN
5 0.999181  28.3567    0.377 POLICE UNEMP GUN_LIC H_ARREST W_EARN
5 0.999145  29.6384    0.393 POLICE UNEMP GUN_LIC W_MALE W_EARN
5 0.999130  30.1944    0.401 UNEMP GUN_LIC H_ARREST W_MALE W_EARN
5 0.999030  33.7688    0.446 UNEMP GUN_LIC H_ARREST GOV_WRK W_EARN
-----------------------------------------------------------------------```