a. The sample mean and standard deviation from a sample of 81 observations are x = 63

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a. The sample mean and standard deviation from a sample of 81 observations are x̄ = 63 and s = 8. Estimate e with 95% confidence.

b. Repeat part (a) with n = 64.

c. Repeat part (a) with n = 36.

d. Describe what happens to the confidence interval Estimate when the sample size decreases.

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Statistics For Management And Economics Abbreviated

ISBN: 9781285869643

10th Edition

Authors: Gerald Keller

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Question Posted: Feb 03, 2015 09:17 AM

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a. The sample mean and standard deviation from a sample of 81 observations are x = 63

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a 63 1990881 63 177 LCL 6123 UCL ...View the full answer

Statistics For Management And Economics Abbreviated

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