PLEASE ANSWER ASAP Let the time in 10 1 weeks from shipment

PLEASE ANSWER ASAP

Let the time (in 10^ 1 weeks) from shipment of a defective product until the customer returns the product. Suppose that the minimum return time is = 3.5 and that the excess X 3.5 over the minimum has a Weibull distribution with parameters = 2 and = 1.5.

(a) What is the cdf of X? Then find P(5 X 8) (10)

(b) What are the expected return time and variance of return time? [Hint: First obtain and E(X 3.5) (15) and Var(X 3.5)]

Solution