A random sample of 40 taxpayers with adjusted gross incomes of between $100,000 and $200,000 was drawn. These taxpayers claimed an average of $9,922 in medical expenses for the year. Assume the population standard deviation for these deductions was $2,400.

Construct confidence intervals to estimate the average deduction for the population with the following levels of significance:

a. 2%

b. 5%

c. 10%

AppendixLO1