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  1. mathematics
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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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Basic Math

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 60 home theater systems has a mean price of$111.00. Assume the population standard deviation is $16.20.

The 90% confidence interval is(--,--)

The 99% confidence interval is(--,--)

Which interval is wider?

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Solution Given thatPoint estimate sample mean 11100Population standard deviation 1620Sample size n    See Answer
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