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Mathematics, 25.03.2021 16:50 robertotugalanp1wlgs
A survey of several 9 to 11 year olds recorded the following amounts spent on a trip to the mall: $23.71,$17.79,$29.87,$18.78,$28.76 Construct the 95% confidence interval for the average amount spent by 9 to 11 year olds on a trip to the mall. Assume the population is approximately normal. Step 3 of 4 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
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A survey of several 9 to 11 year olds recorded the following amounts spent on a trip to the mall: $2...
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