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  3. you are given the sample mean and the population s

You are given the sample mean and the population standard deviation. Use this information to construct...

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Statistics

You are given the sample mean and the population standarddeviation. Use this information to construct the​ 90% and​ 95%confidence intervals for the population mean. Interpret the resultsand compare the widths of the confidence intervals. If​convenient,use technology to construct the confidence intervals.

A random sample of 50 home theater systems has a mean price of​$130.00. Assume the population standard deviation is $15.50.

Construct a​ 90% confidence interval for the populationmean.

The​ 90% confidence interval is __,__

Answer & Explanation Solved by verified expert
3.8 Ratings (736 Votes)
Solution At 90Z2 1645Margin of error E Z2n 1645 1550 50 361At    See Answer
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