Let X = 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 y = 5.5 and that the excess X - 5.5 over the...

Extracted text: Let X = 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 y = 5.5 and that the excess X - 5.5 over the minimum has a Weibull distribution with parameters a = 2 and B = 1.5. (a) What is the cdf of X? x< 5.5="" f(x)="{" x2="" 5.5="" (b)="" what="" are="" the="" expected="" return="" time="" and="" variance="" of="" return="" time?="" [hint:="" first="" obtain="" e(x="" -="" 5.5)="" and="" v(x="" -="" 5.5).]="" (round="" your="" answers="" to="" three="" decimal="" places.)="" e(x)="V(X)" =|="" 10-1="" weeks="" (10-1="" weeks)?="" (c)="" compute="" p(x=""> 7). (Round your answer to four decimal places.) (d) Compute P(7 SXS 8.5). (Round your answer to four decimal places.)