18. Suppose that you are testing the hypotheses 80 vs. A sample of size 61 results in...

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18. Suppose that you are testing the hypotheses 80 vs. A sample of size 61 results in a sample mean of 75 and a standard deviation of 1.5.

a) What is the standard error of the mean?

b) What is the critical value of t* for a 95% confidence interval?

c) Construct a 95% confidence interval for

d) Based on the confidence interval, at can you reject Explain.

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Business Statistics

ISBN: 9780321716095

2nd Edition

Authors: Norean D. Sharpe, Paul F. Velleman, David Bock, Norean Radke Sharpe

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Question Posted: Sep 07, 2024 04:02 AM

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18. Suppose that you are testing the hypotheses 80 vs. A sample of size 61 results in...

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Business Statistics

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