A survey of several 9 to 11 year olds recorded the following amounts spent on a trip to the mall:
$22.13,$27.69,$29.31,$24.63,$24.35
Construct the
98%
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 4 of 4: Construct the
98%
confidence interval. Round your answer to two decimal places. AnswerHow to enter your answer (opens in new window) 1 Point Lower endpoint:
?
Upper endpoint: