A sample of size n = 50 is drawn from a population whose standard deviation is

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A sample of size n = 50 is drawn from a population whose standard deviation is σ = 26.

a. Find the margin of error for a 90% confidence interval for μ.

b. If the sample size were n = 40, would the margin of error be larger or smaller?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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