Quick Quiz: Assume that you plan to use a significance level of a = 0.05 to test the claim that p1 = p2, Use the given sample sizes and numbers of successes to find the pooled estimate p. Round your answer to the nearest thousandth. n₁ = 677 n2 = 3377 X1 = 172 X2 = 654 A) 0.163 B) 0.452 C) 0.204 D) 0.408 Requirements 1. We have proportions from two independent simple random samples. 2. For each of the two samples, the number of successes is at least 10 and the number of failures is at least 10. Test Statistic for Two Proportions For, Ho: p1=p2 (P1 – P2) - (P1 - P2) pq pq + √n1 n₂ where (assumed in the null hypothesis) P₁ P₂ = 0 Testing Two Proportions P-value: P-values are automatically provided by technology. Z - (Same as p₁ = P2.) Quick Quiz: Compute the test statistic used to test the null hypothesis that p₁=p2: In a vote on the Clean Water bill, 41% of the 205 Democrats voted for the bill while 40% of the 230 Republicans voted for it. a)0.212 b) 0.127 c) 0.233 d) 0.180

Quick Quiz: Assume that you plan to use a significance level of a = 0.05 to test the claim that p1 = p2, Use the given sample sizes and numbers of successes to find the pooled estimate p. Round your answer to the nearest thousandth. n₁ = 677 n2 = 3377 X1 = 172 X2 = 654 A) 0.163 B) 0.452 C) 0.204 D) 0.408 Requirements 1. We have proportions from two independent simple random samples. 2. For each of the two samples, the number of successes is at least 10 and the number of failures is at least 10. Test Statistic for Two Proportions For, Ho: p1=p2 (P1 – P2) - (P1 - P2) pq pq + √n1 n₂ where (assumed in the null hypothesis) P₁ P₂ = 0 Testing Two Proportions P-value: P-values are automatically provided by technology. Z - (Same as p₁ = P2.) Quick Quiz: Compute the test statistic used to test the null hypothesis that p₁=p2: In a vote on the Clean Water bill, 41% of the 205 Democrats voted for the bill while 40% of the 230 Republicans voted for it. a)0.212 b) 0.127 c) 0.233 d) 0.180

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 1GP

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