In Exercise 6.54 on page 206, the lifetime of a transistor
Chapter 6, Problem 6.76(choose chapter or problem)
In Exercise 6.54 on page 206, the lifetime of a transistor is assumed to have a gamma distribution with mean 10 weeks and standard deviation50 weeks. Suppose that the gamma distribution assumption is incorrect. Assume that the distribution is normal. (a) What is the probability that a transistor will last at most 50 weeks? (b) What is the probability that a transistor will not survive for the rst 10 weeks? (c) Comment on the dierence between your results here and those found in Exercise 6.54 on page 206.
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