Refer to Exercise 9.42. Suppose, for practical reasons, you know that p1 cannot be larger than p2.
a. Given this knowledge, what should you choose as the alternative hypothesis for your statistical test? The null hypothesis?
b. Does your alternative hypothesis in part a imply a one- or two-tailed test? Explain.
c. Conduct the test and state your conclusions. Test using α = .05.
Exercise 9.42
Independent random samples of n1 = 140 and n2 = 140 observations were randomly selected from binomial populations 1 and 2, respectively. Sample 1 had 74 successes, and sample 2 had 81 successes.