independent random samples of n, = 190 and n, - 190 observations were randomly selected from binomial populations 1 and 2, respectively, Sample I had 75 successes, and sample 2 had 81 successes. (a) Suppose you have no preconceived idea as to which parameter, p, or p., is the larger, but you want to detect only a difference between the two parameters if one exists. What should you choose as the alternative hypothesis for a statistical test? The null hypothesis? Hot (P) - P2) . 0 versus H.1 (P, - P2) - 0 ON. (P) - 2) = 0 versus H.: (D, - P2) 2 0 . Hol (D) - D2) - 0 versus H.: (P, - P2) . 0 O Hot (P) - By) 4 0 versus H.1 (P) - P2) > 0 O Hol (P, - P2) = 0 versus Hot (P, - P2) 1.645 2 1645 Do the data provide sufficient evidence to indicate a difference in the population proportions? O He is rejected. There is insufficient evidence to indicate that there is a difference in the two population proportions