Re: datasets w/equal R^2???

[dennis roberts]

found the data ... entered it ... here is some stuff on it
=======

  Row     X1      Y1     X2     Y2     X3      Y3     X4      Y4

    1     10    8.04     10   9.14     10    7.46      8    6.58
    2      8    6.95      8   8.14      8    6.77      8    5.76
    3     13    7.58     13   8.74     13   12.74      8    7.71
    4      9    8.81      9   8.77      9    7.11      8    8.84
    5     11    8.33     11   9.26     11    7.81      8    8.47
    6     14    9.96     14   8.10     14    8.84      8    7.04
    7      6    7.24      6   6.13      6    6.08      8    5.25
    8      4    4.26      4   3.10      4    5.39     19   12.50
    9     12   10.84     12   9.13     12    8.15      8    5.56
   10      7    4.82      7   7.26      7    6.42      8    7.91
   11      5    5.68      5   4.74      5    5.73      8    6.89

MTB > plot c2 c1

Plot


          -                               *
  Y1      -
          -                                      *
          -                     *
       8.0+                        *   *
          -           *      *               *
          -
          -        *
          -              *
       4.0+    *
            +---------+---------+---------+---------X1
          3.0       6.0       9.0      12.0

MTB > plot c4 c3

Plot


          -                            *
          -                     *  *      *  *
       8.0+                  *                   *
          -              *
  Y2      -           *
          -
          -        *
       4.0+
          -    *
          -
            +---------+---------+---------+---------X2
          3.0       6.0       9.0      12.0

MTB > plot c6 c5

Plot


  Y3      -                                  *
          -
          -
      10.0+
          -                                      *
          -                            *  *
          -                  *  *  *
          -        *  *  *
       5.0+    *
          -
            +---------+---------+---------+---------X3
          3.0       6.0       9.0      12.0

MTB > plot c8 c7

Plot


  Y4      -                                      *
          -
          -
      10.0+
          -  *
          -  3
          -  3
          -  2
       5.0+  *
          -
            ----+---------+---------+---------+-----X4
              9.0      12.0      15.0      18.0

MTB > corr c1-c8

Correlations: X1, Y1, X2, Y2, X3, Y3, X4, Y4


              X1       Y1       X2       Y2       X3       Y3       X4
Y1        0.816
           0.002

X2        1.000    0.816
               *    0.002

Y2        0.816    0.750    0.816
           0.002    0.008    0.002

X3        1.000    0.816    1.000    0.816
               *    0.002        *    0.002

Y3        0.816    0.469    0.816    0.588    0.816
           0.002    0.146    0.002    0.057    0.002

X4       -0.500   -0.529   -0.500   -0.718   -0.500   -0.345
           0.117    0.094    0.117    0.013    0.117    0.299

Y4       -0.314   -0.489   -0.314   -0.478   -0.314   -0.155    0.817
           0.347    0.127    0.347    0.137    0.347    0.648    0.002

Cell Contents: Pearson correlation
                P-Value

MTB > dotp c10-c13;
SUBC> same.

Dotplot: C10, C11, C12, C13


                          .
             . .     .   .:.      ..  .
           -----+---------+---------+---------+----C10
                                  .
             :       :     :   :  :
           -----+---------+---------+---------+----C11

                  . ...... ...                  .
           -----+---------+---------+---------+----C12

              . . .    . .:    ..   . .
           -----+---------+---------+---------+----C13
             -1.5       0.0       1.5       3.0       4.5

MTB > desc c10-c13

Descriptive Statistics: C10, C11, C12, C13


Variable             N       Mean     Median     TrMean      StDev    SE Mean
C10                 11     -0.000     -0.041      0.009      1.173      0.354
C11                 11     -0.000      0.129      0.070      1.174      0.354
C12                 11     -0.000     -0.230     -0.231      1.173      0.354
C13                 11     -0.000      0.000     -0.010      1.172      0.353

Variable       Minimum    Maximum         Q1         Q3
C10             -1.921      1.839     -0.740      1.239
C11             -1.901      1.269     -0.761      1.139
C12             -1.159      3.241     -0.689      0.229
C13             -1.751      1.839     -1.241      0.909

MTB >



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