Mathematics, 20.07.2021 05:00 MNBASKETBALL838
A survey of several 8 to 9 year olds recorded the following amounts spent on a trip to the mall: $31.11,$25.01,$18.53,$14.37,$24.16, $21.91 Construct the 80% confidence interval for the average amount spent by 8 to 9 year olds on a trip to the mall. Assume the population is approximately normal. Step 1 of 4 : Calculate the sample mean for the given sample data. Round your answer to two decimal places.
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A survey of several 8 to 9 year olds recorded the following amounts spent on a trip to the mall: $31...
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