4. 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. Perform a hypothesis test at 95% confidence to see if the type of program has an effect on sexual activity rates (25 pts). 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 df Mean Square (MS) F (SS) Between groups Within groups Total