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Question

You are given the sample mean and the population standard deviation. Use this information to construct the​ 90%

and​ 95% confidence intervals for the population mean. Interpret the results and 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 ​$148.00. Assume the population standard deviation is ​$18.60. Construct a​ 95% confidence interval for the population mean.


The​ 95% confidence interval is ​(___,___)

Top Answer

95% confidence interval (143.29, 152.71) it means we are 95% confident that mean price of all home theater system lies... View the full answer

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