For a selected month,the average kilowatt hours used for 49 residential customers showed that $\bar { x }$ is 1160 and s is 1085.Compute a 98% confidence interval estimate for the true mean.
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The Answer of For a selected month,the average kilowatt hours used for 49 residential customers showed that $\bar { x }$ is 1160 and s is 1085.Compute a 98% confidence interval estimate for the true mean.
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For a Selected Month,the Average Kilowatt Hours Used for 49 xˉ\bar { x }xˉ

For a Selected Month,the Average Kilowatt Hours Used for 49 $\bar { x }$