For a population: a. with a standard deviation of σ= 15, how large a sample would be needed to have a standard error of 7 points? (This is a sample of people, so round to whole numbers.) b. with a standard deviation of σ = 32, how large a sample would be needed to have a standard error of 7 points? (This is a sample of people, so round to whole numbers.)

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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For a population:


a. with a standard deviation of  σ= 15, how large a sample would be needed to have a standard error of 7 points? (This is a sample of people, so round to whole numbers.)


b. with a standard deviation of σ = 32, how large a sample would be needed to have a standard error of 7 points? (This is a sample of people, so round to whole numbers.)

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