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I NEED HELP! In a randomized, placebo-controlled study, 1030 healthy women 45 years of age or older were randomly divided into two groups. The women

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In a randomized, placebo-controlled study, 1030 healthy women 45 years of age or older were randomly divided into two groups. The women in group 1 received 100 mg of a drug every other day; the women in group 2 received a placebo every other day. The women were monitored for 10 years to determine if they experienced a cardiovascular event (such as a heart attack or stroke). Of the 510 in the drug group, 10 experienced a heart attack. Of the 520 women in the placebo group, 16 experienced a heart attack. Complete parts (a) through (h) below. O B. Randomly assigning the women to a group controls the amount of the drug each woman receives. O C. Randomly assigning the women to a group controls who receive the drug and who receives a placebo. D. Randomly assigning the women to a group controls for any other explanatory variables, since individuals affected by these lurking variables should be equally dispersed between the two groups. (f) Determine whether the proportion of cardiovascular events in each treatment group is different using a two-sample Z-test for comparing two proportions. Use the a = 0.05 level of significance. Let py represent the population proportion of women who take the drug every other day and suffer a heart attack within 10 years and let p2 represent the population proportion of women who take the placebo every other day and suffer a heart attack within 10 years. What are the null and alternative hypotheses? O A. Ho: P1 P2 OF. Ho: P1 # P2 Hy : P 1 > P2 H1 : P1 = P2 H1 : P1 = P2 Determine the test statistic. ZO = (Round to two decimal places as needed.)

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