Mathematics, 08.04.2021 05:00 chrischris1
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 50 home theater systems has a mean price of $128.00. Assume the population standard deviation is $15.80.
Construct a 90% confidence interval for the population mean.
The 90% confidence interval is
(Round to two decimal places as needed.)
Construct a 95% confidence interval for the population mean.
The 95% confidence interval is
(Round to two decimal places as needed.)
Interpret the results.
Answers: 3
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You are given the sample mean and the population standard deviation. Use this information to constru...
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