In a study, a researcher measures the preference of men and women for two brands of frozen pizza (one low-fat and one regular) based on the number of 1-inch pieces of each type of pizza eaten when both types are available to the participants. The following table shows the number of pieces of each type of pizza eaten for each of the 24 subjects in the study.

a. Complete the ANOVA summary table. (If your instructor wants you to calculate the sums of squares, use the preceding data to do so.)

b. Are the values of Fobt significant at α = .05? At α = .01?

c. What conclusions can be drawn from the F-ratios?

d. What is the effect size, and what does this mean?

e. Graph the means.

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Women Men Brand 1 3 (low-fat) 4. 2 2 5 3 Women Men Brand 2 4 (regular) 9. 10 6. 10 Source df MS Gender 0.167 Pizza brand 6.00 Gender x Pizza 130.67 Error 35.00 Total 171.83