Output from stakloss.sas	Source 0 Graphs

                         Stack Loss data: Diagnostics                        1

                  TIME    AIRFLO    COOL    ACID    STAKLOSS

                    1       80       27      89        42
                    2       80       27      88        37
                    3       75       25      90        37
                    4       62       24      87        28
                    5       62       22      87        18
                    6       62       23      87        18
                    7       62       24      93        19
                    8       62       24      93        20
                    9       58       23      87        15
                   10       58       18      80        14
                   11       58       18      89        14
                   12       58       17      88        13
                   13       58       18      82        11
                   14       58       19      93        12
                   15       50       18      89         8
                   16       50       18      86         6
                   17       50       19      72         8
                   18       50       19      79         8
                   19       50       20      80         9
                   20       56       20      82        15
                   21       70       20      91        15

                         Stack Loss data: Diagnostics                        2

Model: MODEL1
Dependent Variable: STAKLOSS   Stack loss

                             Analysis of Variance

                                Sum of         Mean
       Source          DF      Squares       Square      F Value       Prob>F

       Model            3   1913.34931    637.78310       60.950       0.0001
       Error           17    177.88879     10.46405
       C Total         20   2091.23810

           Root MSE       3.23482     R-square       0.9149
           Dep Mean      17.47619     Adj R-sq       0.8999
           C.V.          18.50986

                             Parameter Estimates

                      Parameter      Standard    T for H0:
     Variable  DF      Estimate         Error   Parameter=0    Prob > |T|

     INTERCEP   1    -39.919504   11.86465146        -3.365        0.0037
     AIRFLO     1      0.722733    0.13450284         5.373        0.0001
     COOL       1      1.298944    0.36705454         3.539        0.0025
     ACID       1     -0.158538    0.15588222        -1.017        0.3234

                   Variable
     Variable  DF     Label

     INTERCEP   1  Intercept
     AIRFLO     1  Air flow
     COOL       1  Cooling water temperature
     ACID       1  Acid concentration

                         Stack Loss data: Diagnostics                        3

                   Dep Var   Predict   Std Err             Std Err   Student
   Obs    TIME    STAKLOSS     Value   Predict  Residual  Residual  Residual

     1         1   42.0000   38.8607     1.776    3.1393     2.703     1.161
     2         2   37.0000   39.0193     1.824   -2.0193     2.672    -0.756
     3         3   37.0000   32.4907     1.352    4.5093     2.939     1.534
     4         4   28.0000   22.2718     1.160    5.7282     3.020     1.897
     5         5   18.0000   19.6739     0.739   -1.6739     3.149    -0.532
     6         6   18.0000   20.9729     0.900   -2.9729     3.107    -0.957
     7         7   19.0000   21.3206     1.515   -2.3206     2.858    -0.812
     8         8   20.0000   21.3206     1.515   -1.3206     2.858    -0.462
     9         9   15.0000   18.0819     1.211   -3.0819     3.000    -1.027
    10        10   14.0000   12.6970     1.447    1.3030     2.893     0.450
    11        11   14.0000   11.2701     1.274    2.7299     2.974     0.918
    12        12   13.0000   10.1297     1.507    2.8703     2.862     1.003
    13        13   11.0000   12.3799     1.284   -1.3799     2.969    -0.465
    14        14   12.0000   11.9349     1.468    0.0651     2.883     0.023
    15        15    8.0000    5.4883     1.412    2.5117     2.911     0.863
    16        16    6.0000    5.9639     1.171    0.0361     3.015     0.012
    17        17    8.0000    9.4823     2.077   -1.4823     2.480    -0.598
    18        18    8.0000    8.3726     1.296   -0.3726     2.964    -0.126
    19        19    9.0000    9.5130     1.351   -0.5130     2.939    -0.175
    20        20   15.0000   13.5323     0.916    1.4677     3.102     0.473
    21        21   15.0000   22.2237     1.726   -7.2237     2.736    -2.640

                                     Cook's            Hat Diag       Cov
   Obs    TIME      -2-1-0 1 2            D  Rstudent         H     Ratio

     1         1  |      |**    |     0.146    1.1741    0.3016    1.3111
     2         2  |     *|      |     0.067   -0.7459    0.3178    1.6295
     3         3  |      |***   |     0.125    1.6038    0.1746    0.8505
     4         4  |      |***   |     0.133    2.0726    0.1285    0.5648
     5         5  |     *|      |     0.004   -0.5200    0.0522    1.2575
     6         6  |     *|      |     0.019   -0.9543    0.0775    1.1071
     7         7  |     *|      |     0.046   -0.8034    0.2192    1.3935
     8         8  |      |      |     0.015   -0.4511    0.2192    1.5518
     9         9  |    **|      |     0.043   -1.0293    0.1402    1.1469
    10        10  |      |      |     0.013    0.4396    0.2000    1.5184
    11        11  |      |*     |     0.039    0.9136    0.1550    1.2307
    12        12  |      |**    |     0.070    1.0030    0.2172    1.2756
    13        13  |      |      |     0.010   -0.4538    0.1575    1.4373
    14        14  |      |      |     0.000    0.0219    0.2058    1.6045
    15        15  |      |*     |     0.044    0.8562    0.1905    1.3160
    16        16  |      |      |     0.000    0.0116    0.1311    1.4666
    17        17  |     *|      |     0.063   -0.5860    0.4121    1.9913
    18        18  |      |      |     0.001   -0.1220    0.1606    1.5126
    19        19  |      |      |     0.002   -0.1695    0.1745    1.5329
    20        20  |      |      |     0.005    0.4620    0.0802    1.3140
    21        21  | *****|      |     0.693   -3.3345    0.2845    0.2158

                         Stack Loss data: Diagnostics                        4

                            INTERCEP   AIRFLO     COOL      ACID
   Obs    TIME      Dffits   Dfbetas   Dfbetas   Dfbetas   Dfbetas

     1         1    0.7715   -0.0826    0.3885    0.1003   -0.2035
     2         2   -0.5091    0.0139   -0.2645   -0.0645    0.1744
     3         3    0.7377   -0.1867    0.3871   -0.0046   -0.0464
     4         4    0.7959   -0.1230   -0.4192    0.6251    0.0274
     5         5   -0.1221    0.0115    0.0117   -0.0292   -0.0066
     6         6   -0.2766    0.0383    0.1046   -0.1670   -0.0122
     7         7   -0.4257    0.2874    0.2607   -0.2560   -0.2741
     8         8   -0.2390    0.1614    0.1464   -0.1437   -0.1539
     9         9   -0.4156    0.0758    0.3015   -0.3224   -0.0762
    10        10    0.2198    0.1574    0.1278   -0.1361   -0.1321
    11        11    0.3913   -0.0703    0.1124   -0.2752    0.1639
    12        12    0.5283   -0.0118    0.2413   -0.4426    0.1324
    13        13   -0.1962   -0.1154   -0.1124    0.1369    0.0852
    14        14    0.0112   -0.0064   -0.0009   -0.0040    0.0088
    15        15    0.4153   -0.1241   -0.2089   -0.0306    0.2643
    16        16    0.0045   -0.0000   -0.0021   -0.0004    0.0017
    17        17   -0.4907   -0.4519    0.0194   -0.0620    0.4139
    18        18   -0.0534   -0.0382    0.0186   -0.0108    0.0272
    19        19   -0.0779   -0.0423    0.0447   -0.0363    0.0291
    20        20    0.1364    0.0890   -0.0109    0.0054   -0.0694
    21        21   -2.1028    0.4021   -1.6258    1.6439   -0.3638

Sum of Residuals                      0
Sum of Squared Residuals       177.8888
Predicted Resid SS (Press)     290.3411

                         Stack Loss data: Diagnostics                        5

        Plot of RESIDUAL*PREDICT.  Legend: A = 1 obs, B = 2 obs, etc.

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   6 +
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s    |       A
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d    |
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a    |                             A
l -2 +                                                                    A
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     -+---------+---------+---------+---------+---------+---------+---------+-
      5        10        15        20        25        30        35        40

                            Predicted Value of STAKLOSS

                         Stack Loss data: Diagnostics                        6

          Plot of RESIDUAL*TIME.  Legend: A = 1 obs, B = 2 obs, etc.

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   s    |                                                     A
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   a    |              A
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        ---+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--
           1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21

                                       TIME

                         Stack Loss data: Diagnostics                        7

          Plot of STAKLOSS*TIME.  Legend: A = 1 obs, B = 2 obs, etc.

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     42 +  A
     41 +
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   S 29 +
   t 28 +           A
   a 27 +
   c 26 +
   k 25 +
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   l 23 +
   o 22 +
   s 21 +
   s 20 +                       A
     19 +                    A
     18 +              A  A
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     15 +                          A                                A  A
     14 +                             A  A
     13 +                                   A
     12 +                                         A
     11 +                                      A
     10 +
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      8 +                                            A     A  A
      7 +
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        ---+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--
           1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21

                                       TIME