Clinical Trial Patients were diagnosed as being either

Chapter 10, Problem 10.7.20

(choose chapter or problem)

Clinical Trial Patients were diagnosed as being either condition A or conditionBbeforeundergoingatreatment.Thetreatment was successful for 56 out of 94 patients classied as condition A, and the treatment was successful for 64 out of 153 patients classied as condition B. (a) Perform a hypothesis test to assess whether there is sufcient evidence to conclude that the chance of success for patients with condition A is better than 50%. (b) Construct a two-sided 99% condence interval for the difference between the success probabilities for patients with condition A and with condition B. (c) Perform a chi-square goodness of t test to investigate whether there is sufcient evidence to conclude that the success probabilities are different for patients with condition A and with condition B. What is your conclusion?

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