A survey of several 1010 to 11

Sara Bella

Sara Bella

Open question

2022-06-04

A survey of several 1010 to 1111 year olds recorded the following amounts spent on a trip to the mall:

$23.22,$9.71,$14.34,$23.05,$16.61,$7.22,$22.15
 

 

Construct the 99% confidence interval for the average amount spent by 10 to 11 year olds on a trip to the mall. Assume the population is approximately normal.

 

Step 4 of 4 : 

 

Construct the 99% confidence interval. Round your answer to two decimal places.

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