Data Set 13-8 N = 10 for each cell. Experiment X Experiment Y Experiment Z B ₁ B ₂ B ₁ B ₂ B ₁ B ₂ A ₁ 2 6 A ₁ 5 10 A ₁ 10 10 A ₂ 6 10 A ₂ 10 5 A ₂ 5 5 In Data Set 13-8, there could be an interaction in

	a.	X and Z
	b.	X and Y
	c.	none of the other alternatives are correct; answer is __________
	d.	Y and Z

Data Set 13-4 The number in each cell is the mean of 5 participants on the Loose Label Political Opinion Poll (high scores = liberal, low scores = conservative). Socioeconomic Status Low Medium High Major in Humanities 50 20 50 College Nat. Science 30 60 30 In the factorial ANOVA of Data Set 13-4, the main effect that compares the political attitudes of low, medium and high socio-economic levels would appear to be

	a.	not significant
	b.	significant
	c.	cannot tell from the information given