Output from bloodreg.sas

 Source
0 Graphs 
      Age & blood concentration of cholesterol in Iowa & Nebraska women      1
                          Fitting common regression

                       General Linear Models Procedure

                   Number of observations in data set = 30

      Age & blood concentration of cholesterol in Iowa & Nebraska women      2
                          Fitting common regression

                       General Linear Models Procedure

Dependent Variable: Y
                                    Sum of           Mean
Source                  DF         Squares         Square   F Value     Pr > F

Model                    1     48976.30380    48976.30380     25.13     0.0001

Error                   28     54560.36287     1948.58439

Corrected Total         29    103536.66667

                  R-Square            C.V.       Root MSE               Y Mean

                  0.473033        20.65964       44.14277             213.6667


Source                  DF       Type I SS    Mean Square   F Value     Pr > F

AGE                      1     48976.30380    48976.30380     25.13     0.0001

Source                  DF     Type III SS    Mean Square   F Value     Pr > F

AGE                      1     48976.30380    48976.30380     25.13     0.0001


                                        T for H0:    Pr > |T|   Std Error of
Parameter                  Estimate    Parameter=0                Estimate

INTERCEPT               91.57157789           3.57     0.0013    25.65258477
AGE                      2.51396888           5.01     0.0001     0.50144869



      Age & blood concentration of cholesterol in Iowa & Nebraska women      3
                      Test of homogeneity of regression

                       General Linear Models Procedure
                           Class Level Information

                          Class    Levels    Values

                          STATE         2    IA NE


                   Number of observations in data set = 30


      Age & blood concentration of cholesterol in Iowa & Nebraska women      4
                      Test of homogeneity of regression

                       General Linear Models Procedure

Dependent Variable: Y
                                    Sum of           Mean
Source                  DF         Squares         Square   F Value     Pr > F

Model                    3     55141.80269    18380.60090      9.87     0.0002

Error                   26     48394.86397     1861.34092

Corrected Total         29    103536.66667

                  R-Square            C.V.       Root MSE               Y Mean

                  0.532582        20.19185       43.14326             213.6667


Source                  DF       Type I SS    Mean Square   F Value     Pr > F

AGE                      1     48976.30380    48976.30380     26.31     0.0001
STATE                    1      5456.44971     5456.44971      2.93     0.0988
AGE*STATE                1       709.04919      709.04919      0.38     0.5425

Source                  DF     Type III SS    Mean Square   F Value     Pr > F

AGE                      1     45647.12508    45647.12508     24.52     0.0001
STATE                    1      2077.68565     2077.68565      1.12     0.3005
AGE*STATE                1       709.04919      709.04919      0.38     0.5425



      Age & blood concentration of cholesterol in Iowa & Nebraska women      5
                     Fit lines with different intercepts

                       General Linear Models Procedure
                           Class Level Information

                          Class    Levels    Values

                          STATE         2    IA NE


                   Number of observations in data set = 30


      Age & blood concentration of cholesterol in Iowa & Nebraska women      6
                     Fit lines with different intercepts

                       General Linear Models Procedure

Dependent Variable: Y
                                    Sum of           Mean
Source                  DF         Squares         Square   F Value     Pr > F

Model                    2     54432.75351    27216.37675     14.97     0.0001

Error                   27     49103.91316     1818.66345

Corrected Total         29    103536.66667

                  R-Square            C.V.       Root MSE               Y Mean

                  0.525734        19.95903       42.64579             213.6667


Source                  DF       Type I SS    Mean Square   F Value     Pr > F

AGE                      1     48976.30380    48976.30380     26.93     0.0001
STATE                    1      5456.44971     5456.44971      3.00     0.0947

Source                  DF     Type III SS    Mean Square   F Value     Pr > F

AGE                      1     53820.05813    53820.05813     29.59     0.0001
STATE                    1      5456.44971     5456.44971      3.00     0.0947



      Age & blood concentration of cholesterol in Iowa & Nebraska women      7
                         Fitting Separate regressions

                       General Linear Models Procedure
                           Class Level Information

                          Class    Levels    Values

                          STATE         2    IA NE


                   Number of observations in data set = 30


      Age & blood concentration of cholesterol in Iowa & Nebraska women      8
                         Fitting Separate regressions

                       General Linear Models Procedure

Dependent Variable: Y
                                    Sum of           Mean
Source                  DF         Squares         Square   F Value     Pr > F

Model                    3     55141.80269    18380.60090      9.87     0.0002

Error                   26     48394.86397     1861.34092

Corrected Total         29    103536.66667

                  R-Square            C.V.       Root MSE               Y Mean

                  0.532582        20.19185       43.14326             213.6667


Source                  DF       Type I SS    Mean Square   F Value     Pr > F

STATE                    1       612.69537      612.69537      0.33     0.5711
AGE(STATE)               2     54529.10732    27264.55366     14.65     0.0001

Source                  DF     Type III SS    Mean Square   F Value     Pr > F

STATE                    1      2077.68565     2077.68565      1.12     0.3005
AGE(STATE)               2     54529.10732    27264.55366     14.65     0.0001



      Age & blood concentration of cholesterol in Iowa & Nebraska women      9
                         Fitting Separate regressions

                Plot of PRED*AGE.  Symbol is value of STATE.

PRED |
     |
 300 +
     |                                                                    N
     |
     |
     |
 280 +                                                                  I
     |                                                            N
     |                                                         N
     |
     |                                                             I
 260 +                                                     N
     |
     |
     |                                                N      I
     |                                              N
 240 +
     |
     |
     |                                         N
     |                                                I
 220 +                                     N
     |
     |                                  N         I
     |                                NN
     |                                          I
 200 +
     |                                       I
     |
     |
     |                       N            I
 180 +                     N
     |                    N
     |
     |                               I
     |                             I
 160 +
     |           N
     |
     |        NN
     |                       I
 140 +
     |
     -+---------+---------+---------+---------+---------+---------+---------+-
     10        20        30        40        50        60        70        80

                                        AGE

NOTE: 2 obs hidden.
      Age & blood concentration of cholesterol in Iowa & Nebraska women     10
                         Fitting Separate regressions

              Plot of RESIDUAL*PRED.  Symbol is value of STATE.

     RESIDUAL |
              |
              |
          100 +
              |
              |
              |
              |                                              N
           80 +
              |                                            N
              |
              |
              |
           60 +             I
              |                                                 I
              |
              |                               I
              |
           40 +               N
              |                N
              |
              |
              |                             I
           20 +                  I
              |                                        N
              |                               N
              |                              N         N
              |                                        I
            0 +---------------------------------------------------------
              |                        I           N
              |              N         N
              |
              |                                                N
          -20 +                       N
              |                               N N
              |
              |
              |                      N           I
          -40 +                               N             I
              |                                       N
              |
              |
              |                    I                                N
          -60 +
              |
              |
              |                           I
              |
          -80 +
              |


              ---+------------+------------+------------+------------+--
                100          150          200          250          300

                                         PRED