Question
A department store conducted a study regarding the mean distance customers live from the store. The store randomlyselected 230 customers and found they lived a
A department store conducted a study regarding the mean distance customers live from the store. The store randomlyselected 230 customers and found they lived a mean distance of 18.1 miles from the store. The department also found thestandard deviation of the sample to be 3.6 miles. What is the margin of error, assuming a 90% confidence level?A. +0.24B. +0.47C. ±0.36D. ±0.39
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Precalculus Mathematics For Calculus
Authors: David M Kennedy, James Stewart, Lothar Redlin, Saleem Watson
6th Edition
1133715044, 9781133715047
