Question: The manager of the Prescott HyVee Food Emporium , Bob Sugars, wants to know what the mean dollars spent per visit by his customers to the Emporium . For two weeks he asks his checkout clerks to keep copies of the paper receipts from all foods purchased at the Emporium , he then selected 100 at random. He found that the average spent at the Emporium was $45.67 with a sample standard deviation of $12.30 . At the .05 level , what is the range that you could expect these purchases to realistically fall within?

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