The Wall Street Journal reported that 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal incom- cax return. The mean amount of deductions for this population of taxpayers was $16,941. Assume that the standard deviation is o = $2942. Use z-table. a. What is the probability that a sample of taxpayers from this income group who have itemized deductions will show a sample mean within $176 of the population mean for each of the following sample sizes: 30, 50, 100, and 400? Round your answers to four decimals. n = 30 n = 50 n= 100 n = 400 b. What is the advantage of a larger sample size when attempting to estimate the population mean? Round your answers to four decimals. A larger sample Select your answer - the probability that the sample mean will be within a specified distance of the population mean. In this instance, the probability of being within ±176 of µ ranges from for a sample of size 30 to for a sample of size 400.

The Wall Street Journal reported that 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal incom- cax return. The mean amount of deductions for this population of taxpayers was $16,941. Assume that the standard deviation is o = $2942. Use z-table. a. What is the probability that a sample of taxpayers from this income group who have itemized deductions will show a sample mean within $176 of the population mean for each of the following sample sizes: 30, 50, 100, and 400? Round your answers to four decimals. n = 30 n = 50 n= 100 n = 400 b. What is the advantage of a larger sample size when attempting to estimate the population mean? Round your answers to four decimals. A larger sample Select your answer - the probability that the sample mean will be within a specified distance of the population mean. In this instance, the probability of being within ±176 of µ ranges from for a sample of size 30 to for a sample of size 400.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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