10_07_09 - Drug A Drug B Cured 54 87 Not cured 66 63 Total...

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STAT 409 Examples for 10/07/2009 Fall 2009 Comparing Two Population Proportions Test Statistic: ( 29 n n p p p p z = + - - 2 1 2 1 1 1 1 ˆ ˆ ˆ ˆ , where 2 1 2 2 1 1 2 1 2 1 ˆ ˆ ˆ n n p n p n n n p Y Y + + = + + = 1. In a comparative study of two new drugs, A and B, 120 patients were treated with drug A and 150 patients with drug B, and the following results were obtained.
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Unformatted text preview: Drug A Drug B Cured 54 87 Not cured 66 63 Total 120 150 We wish to test whether drug B has a higher cure rate than drug A. Find the p-value of the appropriate test. Claim: H : vs. H 1 : Test Statistic: P-value:...
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