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Construct a? confidence interval for population mean

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Reference no: EM132464049

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? 90% confidence interval for the population mean.

The? 90% confidence interval is ?(___,___)

?(Round to two decimal places as? needed.)

Reference no: EM132464049

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