" "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%"