A test was made of H0: 1 = 2 versus H1: 1 2. The sample means

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A test was made of H0: μ1 = μ2 versus H1: μ1 ≠ μ2. The sample means were x̄1 = 10 and x̄2 = 8, the sample standard deviations were s1 = 4 and s2 = 7, and the sample sizes were n1 = 15 and n2 = 27.

a. How many degrees of freedom are there for the test statistic, using the simple method?

b. Compute the value of the test statistic.

c. Is H0 rejected at the 0.05 level? Explain.

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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Question Posted: May 10, 2024 10:01 AM

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A test was made of H0: 1 = 2 versus H1: 1 2. The sample means

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Elementary Statistics

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