Page 152 - Quantitative Data Analysis
P. 152

Quantitative Data Analysis
                                              Simply Explained Using SPSS


                  9      9       8.516        3.016    9.096   0.484   0.234

                  10     6       9.261        3.761   14.143   -3.261  10.632
                  9      6       8.516        3.016    9.096   -2.516   6.330
                  4      9       4.793       -0.708    0.501   4.208  17.703
                  4     10       4.793       -0.708    0.501   5.208  27.118
                                                                       ∑ (Y-
                                                           2
                                                         ̅
                 ∑X=   ∑Y=      ∑Y’= 110             ∑(Y'- )           Y') 2
                  99    110                          =4.840
                                                                      90.156

                                                             2
                                                           ̅
                       Regression sum of square =   SS reg=∑ (Y' -  ) =  74.84031
                                                          2
                       Residual sum of square =   SS res=∑ (Y-Y') =  90.15561

               4.      F ratio for the test of significance of the regression of Y on
                       X, using the sums of squares (i.e., ss reg and ss res) and using
                       2
                       r xy.




                           − −



                                    − −

                            ×                         t

               5.      Variance of estimate and the standard error of estimate.
                       Variance of estimate is defined as


                             ∑




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