A medical research team conducted a study to test the effect of a drug used to treat a type of inflammation. In the study, 68 subjects took the drug and 68 subjects took a placebo. The results are shown below. At α = 0.05, can you reject the claim that the proportion of subjects who had at least 24 weeks of accrued remission is the same for the two groups?

(a) Identify the claim and state H₀ and H_a, 

(b) Find the critical value(s) and identify the rejection region(s), 

(c) Find the standardized test statistic z, 

(d) Decide whether to reject or fail to reject the null hypothesis, and

(e) Interpret the decision in the context of the original claim. Assume the samples are random and independent.

Transcribed Image Text:

Do You Have At Least 24 Weeks of Accrued Remission? Yes 2 Yes 19 No No 66 49 Drug Placebo