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 40 home theater systems has a...




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
40

home theater systems has a mean price of
​$138.00.

Assume the population standard deviation is
​$17.80.






Construct a​ 90% confidence interval for the population mean.





Jun 08, 2022
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