ANOVA --two factor

Getting the ANOVA Table

1. Enter the values into one column and then list the levels of the factorA  in the second column and the levels of factor B in tthe third column. Your worksheet should look like this.

    X           Club     Brand
226.4        D        1
232.6         D       1
234.0         D       1
200.7         D       1
163.8          I        1
168.4          I        1
197.4          I        1

1. Go to Stat, Basic Statistics, ANOVA, Two Way. The following screen should appear.

1. Enter the values into the Response box and enter factors under row factor and column factor.
2. Hit O.K. You should get the following output. Notice that this give you the ANOVA output with interaction.

Two-way ANOVA: X versus Club, Brand
 

Analysis of Variance for X
Source        DF        SS         MS                F        P
Club           1      29124.9   29124.9   345.32    0.000
Brand         3         791.6        263.9       3.13    0.044
Interaction   3       1126.7       375.6       4.45    0.013
Error         24       2024.2         84.3
Total            31   33067.4

1. If you had selected the box "Fit Additive Model", you would have gotten the ANOVA table without the interaction row.