A study found that 8-to 12-year olds spend an average of $18.50 per trip to mall. If a sample of 49 1 answer below »

A study found that 8-to 12-year olds spend an average of $18.50 per trip to mall. If a sample of 49 children was used, find the 99% confidence inteval of the mean. Assume the standard deviation is $1.50.

 

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