Mathematics, 07.11.2019 20:31 hannahbrown889

Mileage tests are conducted for a particular model of automobile. if a 98% confidence interval with a margin of error of 1 mile per gallon is desired, how many automobiles should be used in the test? assume that preliminary mileage tests indicate the standard deviation is 2.6 miles per gallon. anderson, david r.. essentials of statistics for business and economics (p. 377). south-western college pub. kindle edition.

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