Suppose that the mean retail price per gallon of regular grade gasoline in the United States is

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Suppose that the mean retail price per gallon of regular grade gasoline in the United States is $3.43 with a standard deviation of $.10 and that the retail price per gallon has a bell-shaped distribution.

a. What percentage of regular-grade gasoline sold between $3.33 and $3.53 per gallon?

b. What percentage of regular-grade gasoline sold between $3.33 and $3.63 per gallon?

c. What percentage of regular-grade gasoline sold for more than $3.63 per gallon?

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Statistics For Business & Economics

ISBN: 9781337901062

14th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran

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Question Posted: Sep 18, 2019 11:43 AM

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Suppose that the mean retail price per gallon of regular grade gasoline in the United States is

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a 333 is one standard deviation below the mean and 353 is one standard deviation above the mean The ...View the full answer

Statistics For Business & Economics

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