a. A random sample of 100 observations was randomly drawn from a population with a standard deviation

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a. A random sample of 100 observations was randomly drawn from a population with a standard deviation of 5. The sample mean was calculated as x̄ = 400. Estimate the population mean with 99% confidence.

b. Repeat part (a) with x̄ = 200.

c. Repeat part (a) with x̄ = 100.

d. Describe what happens to the width of the confidence interval estimate when the sample means 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 08:49 AM

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a. A random sample of 100 observations was randomly drawn from a population with a standard deviation

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a 400 25755 400 129 LCL 39871 UCL 401...View the full answer

Statistics For Management And Economics Abbreviated

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