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A Large Retail Store Recorded the Daily Average Amount of Money

Question 9

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A large retail store recorded the daily average amount of money spent by its customers in December. The data suggest that the amount of money spent daily can be modeled as a distribution with mean $46 and standard deviation $5.5.
If a random sample of size 75 is selected, what is the probability that the sample mean will lie between 44 and 48? Round your answer to four decimal places.

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