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Q. Assume you tested several Firestone tires and recorded their failure times (as defined by an engineer).After doing a Chi-Square test ,you decided that failures are normally distributed ,with mean failure of 50,000 miles and a standard deviation of 10,000 miles .Conclude following:

a) reliability of tires at 40,000 miles

b) given that a tire has been driven (on a test machine) 20,000 miles, Conclude its reliability at 60,000 miles.

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Business Economics, Economics

Category:- Business Economics
Reference No.:- M9292874

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