(Answered) Recent environmental protection agency epa fuel economy

Management Studies

Recent Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested predicted a Normal distribution with a mean of 28.8 mpg and a variance of 40.96 mpg2 for highway driving. If 28 of these cars are randomly selected, then there is a 95 percent chance that the sample standard deviation will be greater than what number? and What is the probability that the sample variance will less than 55.7411 mpg2?

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