Testing the Difference Between Two Proportions In Exercises 712, (a) identify the claim

Chapter 8, Problem 8

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Testing the Difference Between Two Proportions In Exercises 712, (a) identify the claim and state H0 and Ha, (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. If convenient, use technology.Cancer Drug A gastrointestinal stromal tumor is a rare form of cancerthat develops in muscle tissue and blood vessels within the stomach or smallintestine. In a study, 600 subjects had surgery to remove the tumor. For oneyear after surgery, 300 subjects took a drug and 300 subjects took a placebo.The results are shown at the left. At a = 0.10, can you support the claim thatthe proportion of subjects who are cancer-free after one year is greater forsubjects who took the drug than for subjects who took a placebo? (Adaptedfrom American College of Surgeons Oncology Group)