ersity Bb Week-5 - QBA775-898-FA21: Quantitative Methods-FA21 C MindTap - Cengage Learning MINDTAP Q Search this c gnment-4 Check My Work (3 remaining) For the year 2010, 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal income tax return. The mean amount of deductions for this population of taxpayers was $16,642. Assume that the standard deviation is o = $2,240. If required, round your answer to two decimal places. (a) What are the sampling distributions of x for itemized deductions for this population of taxpayers for each of the following sample sizes: 30, 50, 100, and 400? E(X) = $ n Ox 30 50 100 400