Use the Excel display, which results from the scores listed in the accompanying table

Use the Excel display, which results from the scores listed in the accompanying table. The sample data are SAT scores on the verbal and math portions of SAT-I and are based on reported statistics from the College Board. The “Columns” variable is SAT (verbal/math) and the “Sample” variable is gender.

Test the null hypothesis that SAT scores are not affected by an interaction between gender and test (verbal/math). What do you conclude?

Solution: We need to test

Looking at the table we find that the p-value for the interaction is 0.09117, which is greater than the significance level. This means that we fail to reject the null hypothesis.