In a survey, 22 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $46.5 and standard deviation of $11.1. Estimate how much a typical parent would spend on their child's birthday gift (use a 99% confidence level). Give your answers to 3 decimal places. Express your answer in the format of ¤ ± E. $4 士 $

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A: Given : See the excel table

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