Find the standardized test statistic, z, to test the hypothesis that p1 < p2. Use α = 0.10. The sample statistics listed below are from independent samples. n1 = 550, x1 = 121, and n2 = 690, x2 = 195
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Step 1
Given: n1 = 550, x1 = 121 n2 = 690, x2 = 195 Calculate the sample proportions: p̂1 = x1 / n1 = 121 / 550 ≈ 0.220 p̂2 = x2 / n2 = 195 / 690 ≈ 0.283 Show more…
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