Concluder eliability of tires

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Reference no: EM1367567

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.

Reference no: EM1367567

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