# New Drugs

In a comparative study of two new drugs, A and B... see attached

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#### Solution Summary

In a comparative study of two new drugs, A and B, patients were treated with drug A, and patients were treated with drug B. (The two treatment groups were randomly and independently chosen.) It was found that patients were cured using drug A and patients were cured using drug B. Let be the proportion of the population of all patients who are cured using drug A, and let be the proportion of the population of all patients who are cured using drug B. Find a confidence interval for . Then complete the table below.

Carry your intermediate computations to at least three decimal places. Round your responses to at least three decimal places.

1. What is the lower limit of the 90% confidence interval? _______

2. What is the upper limit of the 90% confidence interval? _______