Question: Question 19 2 pts In a random sample of 240 individuals in the income bracket $45,916 to $91,831, the average amount of a tax refund


Question 19 2 pts In a random sample of 240 individuals in the income bracket $45,916 to $91,831, the average amount of a tax refund is $1,783 with a standard deviation of $510. The distribution is approximately Normal for this sample. Calculate the 90% confidence interval for the sample mean. Answer in ascending order to the nearest dollar. The confidence interval is ($ A
Step by Step Solution
There are 3 Steps involved in it
1 Expert Approved Answer
Step: 1 Unlock
Question Has Been Solved by an Expert!
Get step-by-step solutions from verified subject matter experts
Step: 2 Unlock
Step: 3 Unlock
