You have a random sample of 500 population members from each of two populations and you want to set up a test for the following hypotheses H 0 1 2 0 H a 1 2 0 a Suppose the sample results are p 1 31 and p 2 25 Compute p pooled b Calculate the sample statistic, z stat c Using a significance level of...

a For a 05 tail in a normal distribution z 165 The decision rule then is Reject th ...

You have a random sample of 500 population members from each of two populations and you want

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You have a random sample of 500 population members from each of two populations and you want to set up a test for the following hypotheses: H₀: μ₁ – μ₂ < 0 H_a: μ₁ – μ₂ > 0

a. Suppose the sample results are: p̅₁ = .31 and p̅₂ = .25. Compute p̅_pooled.

b. Calculate the sample statistic, z stat.

c. Using a significance level of .05, determine the critical z_score for the test, state your decision rule and report your decision.

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Understanding Business Statistics

ISBN: 978-1118145258

1st edition

Authors: Stacey Jones, Tim Bergquist, Ned Freed

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Question Posted: Jul 16, 2015 05:22 PM

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