Mathematics, 05.11.2019 02:31, sandaepoe001

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.

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Mileage tests are conducted for a particular model of automobile. if a 98% confidence interval with...