Question: Hospital losses again (optional). Table 12.4 (page 655) gives data on a hospitals losses for 120 joint replacement patients, collected as 15 monthly samples of

Hospital losses again (optional). Table 12.4 (page 655)

gives data on a hospital’s losses for 120 joint replacement patients, collected as 15 monthly samples of 8 patients each. The process has been in control and losses have a roughly Normal distribution. The sample standard deviation (s) for the individual measurements is 811.53. The hospital decides that suitable specification limit for its loss in treating one such patient is USL =

$8000.

(a) Estimate the percent of losses that meet the specification.

(b) Estimate Cpu.

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