Question: Reconsider Exercise 15-2 in which the specification limits are 14.50 ± 0.50. (a) What conclusions can you draw about the ability of the process to

Reconsider Exercise 15-2 in which the specification limits are 14.50 ± 0.50.

(a) What conclusions can you draw about the ability of the process to operate within these limits? Estimate the percentage of defective items that is produced.

(b) Estimate PCR and PCR_k. Interpret these ratios.

Exercise 15-2

Twenty-five samples of size 5 are drawn from a process at one-hour intervals, and the following data are obtained:

25 25 25 -8.60 5-3.64 i=1 362.75 i=1 i=1

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