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A survey of several 10 to 12 year olds recorded the following amounts spent on a...

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Statistics

A survey of several 10 to 12 year olds recorded the followingamounts spent on a trip to the mall:$14.73,$18.13,$11.20,$14.89,$18.78,$21.08,$17.26 Construct the 99%confidence interval for the average amount spent by 10 to 12 yearolds on a trip to the mall. Assume the population is approximatelynormal.

Step 1 of 4 : Calculate the sample mean for the given sampledata. Round your answer to two decimal places.

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