You are given the samp’e mean and the populabon standard deviation, Use this information to construct me 90% and 95% confidence intervals for the population mean.

You are given the samp’e mean and the populabon standard deviation, Use this information to construct me 90% and 95% confidence intervals for the population mean. Which inteival is wider? if convenient, use technology to construct the confidence Witerva)s.
A random sample of 44 gas grills has a mean pnce of $62860. Assume the population standard dvtabon Is $55.50.
The 90% confidence interval is ([JiJ).
(Round to one decimal place as needed.)
In a random samp’e of 40 refngecalots. th mean repaw cost was $12900 and t* popidation standard deviation is $1950.
Construct a 90% confidence interval for the
population mean repair cost. lnterprnt resuIts
Construct a 90% confadenc interval for the population mean repay cost
The 90% confidence terV& Is (]iJ. (Round to t decnal paces as needed.)
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