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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

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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 =$2,380. If required, round your answer to two decimal places. (a) What are the sampling errors of x for itemized deductions for this population of taxpayers for each of the following sample sizes: 30 , 50,100 , and 400 ? E(x)=$ (b) What is the advantage of a larger sample size When attemptino to estimate the population mean? A larger sample the standard error and results in a(n) precise estimate of the population mean

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