Answer Happy

You may need to use the appropriate appendix table or technology to answer this question. The Wall Street Journal reports that 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 516,642. Assume the standard deviation is o = $2,400. (a) What is the probability that a sample of taxpayers from this income group who have itemized deductions will show a sample mean within s200 of the population mean for each of the following sample sizes: 20, 50, 150, and 3002 (Round your answers to four decimal places.) sample size n = 20 0.2888 sample size n = 50 0.4797 sample size - 150 0.6923 sample size n = 300 0.8501