6.93 Failures to the bleed systems in jet engines were causing some concern at an air base. It was decided to model the failure-time distribution for these systems so that future failures could be anticipated a little better. Ten observed failure times (in operating hours since installation) were selected randomly from records and are given below (from Weibull Analysis Handbook, Pratt &

Whitney Aircraft, 1983):

1,198, 884, 1,251, 1,249, 708, 1,082, 884, 1,105, 828, 1,013 Does a Weibull distribution appear to be a good model for these data? If so, what values should be used for and ?