For a population with a standard deviation of = 20, how large a sample is necessary

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For a population with a standard deviation of σ = 20, how large a sample is necessary to have a standard error that is:

a. Less than or equal to 5 points?

b. Less than or equal to 2 points?

c. Less than or equal to 1 point?

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Statistics For The Behavioral Sciences

ISBN: 9781111830991

9th Edition

Authors: Frederick J Gravetter, Larry B. Wallnau

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Question Posted: Mar 21, 2018 06:23 AM

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For a population with a standard deviation of = 20, how large a sample is necessary

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