You are interested in testing the effectiveness of abstinence-only sex education against competing programs for

You are interested in testing the effectiveness of abstinence-only sex education against competing programs for comprehensive sex education. You gather data on four different programs in a total of 20 school districts, and track the rate of sexual activity among highschoolers over many years using doctors’ anonymous records. Test the hypothesis at 95% confidence that the type of program has an effect on sexual activity rates.

Abstinence-only A	Abstinence-only B	Comprehensive A	Comprehensive B
32	35	36	45
45	28	40	34
39	52	33	42
36	43	47	35
42	39	38
		37

ANOVA	Sum of Squares (SS)	df	Mean Square (MS)	F
Between groups
Within groups
Total