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An IQ test is designed so that the mean is 100 and the standard deviation is 11 for the population of normal adults. Fin the sample size necessary to estimate the mean IQ score of the residents of a state if you want to be 95% confident th the sample mean is within 2 IQ points of the true mean. The required sample size is (Round up to the nearest whole number.) ...

An IQ test is designed so that the mean is 100 and the standard deviation is 11 for the population of normal adults. Fin the sample size necessary to estimate the mean IQ score of the residents of a state if you want to be 95% confident th the sample mean is within 2 IQ points of the true mean. The required sample size is (Round up to the nearest whole number.) ...

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 47WE
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An IQ test is designed so that the mean is 100 and the standard deviation is 11 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of the residents of a state if you want to be 95% confident that the sample mean is within 2 IQ points of the true mean. The required sample size is (Round up to the nearest whole number.) an ex = CH L' 11 5 Ş W. (C) More X
Transcribed Image Text:An IQ test is designed so that the mean is 100 and the standard deviation is 11 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of the residents of a state if you want to be 95% confident that the sample mean is within 2 IQ points of the true mean. The required sample size is (Round up to the nearest whole number.) an ex = CH L' 11 5 Ş W. (C) More X
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