An IQ test is designed so that the mean is 100 and the standard deviation is
for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with
%
confidence that the sample mean is within
IQ points of the true mean. Assume that
and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation.
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An IQ test is designed so that the mean is 100 and the standard deviation is 13 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 90% confidence that the
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An IQ test is designed so that the mean is 100 and the standard deviation is 21 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 4 IQ points of the true mean. Assume that sigmaσequals=21 and determine the required sample size using technology. Then determine if this is a reasonable sample size for...
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an IQ test is designed so that the mean is 100 and the standard deviation is 23 for the population of normal adults. find the sample size necessary to estimate the mean IQ scores of statistics students such that it can be said with 99% confidence that the simple mean is within 6 IQ points of the true mean. assume that standard deviation is 23 and determine the required sample size using technology. then determine if this is a reasonable...
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