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 $140.00. Assume the population standard deviation is $15.20. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( I ). (Round to two decimal places as needed.)

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Can you please show your work or how to do this on a TI84 calculator

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 $140.00. Assume the population standard deviation is $15.20.
Construct a 90% confidence interval for the population mean.
The 90% confidence interval is ( I ).
(Round to two decimal places as needed.)
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Transcribed Image Text

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 $140.00. Assume the population standard deviation is $15.20. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( I ). (Round to two decimal places as needed.)