MPGfor Lawn Mowers Arandom sample of 22 lawn mowers was
Chapter 7, Problem 14(choose chapter or problem)
MPGfor Lawn Mowers Arandom sample of 22 lawn mowers was selected, and the motors were tested to see how many miles per gallon of gasoline each one obtained. The variance of the measurements was 2.6. Find the 95% confidence interval of the true variance. (74)
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