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In an examination of holiday spending (known to be normally distributed) of a sample of 16...

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Statistics

In an examination of holiday spending (known to be normallydistributed) of a sample of 16 holiday shoppers at a local mall, anaverage of $54 was spent per hour of shopping. Based on the currentsample, the standard deviation is equal to $21. Find a 90%confidence interval for the population mean level of spending perhour.

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solutionGiven that 54s 21n 16Degrees of freedom df n 1    See Answer
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