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1.A researcher is interested in finding out whether the variance in annual repair cost increases with age (common since tells us the mean increases with
1.A researcher is interested in finding out whether thevariancein annual repair cost increases with age (common since tells us the mean increases with age.)A sample of 26four year old cars showed a sample standard deviation $170.A different sample 25 two year old cars showed a sample standard deviation in repair costs of $100.Perform a hypothesis test to see if there is a statistical difference in the two variances.Use alpha = 10%
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