Testing Claims about Proportions. In Exercises 718, test

Chapter 9, Problem 10

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Testing Claims about Proportions. In Exercises 718, test the given claim. Identifythe null hypothesis, alternative hypothesis, test statistic, P-value or critical value(s),conclusion about the null hypothesis, and final conclusion that addresses the originalclaim. Cardiac arrest at Day and night A study investigated survival rates for in-hospitalpatients who suffered cardiac arrest. Among 58,593 patients who had cardiac arrest duringthe day, 11,604 survived and were discharged. Among 28,155 patients who suffered cardiacarrest at night, 4139 survived and were discharged (based on data from Survival from In-Hospital Cardiac Arrest During Nights and Weekends, by Peberdy et al., Journal of theAmerican Medical Association, Vol. 299, No. 7). We want to use a 0.01 significance level totest the claim that the survival rates are the same for day and night.a. Test the claim using a hypothesis test.b. Test the claim by constructing an appropriate confidence interval.c. Based on the results, does it appear that for in-hospital patients who suffer cardiac arrest,the survival rate is the same for day and night?