Confidence interval for the mean monthly expenditure

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Reference no: EM1392881

The mean monthly expenditure on gasoline per household in Slippery Rock is determined by selecting a random sample of 36 households. The sample mean is $68, with a sample standard deviation of $17. What is a 90% confidence interval for the mean monthly expenditure on gasoline per household in Slippery Rock?

Reference no: EM1392881

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