Question: A company purchases a small metal bracket in containers of
A company purchases a small metal bracket in containers of 5,000 each. Ten containers have arrived at the unloading facility, and 250 brackets are selected at random from each container. The fraction nonconforming in each sample are 0, 0, 0, 0.004, 0.008, 0.02, 0.004, 0, 0, and 0.008. Do the data from this shipment indicate statistical control?
Answer to relevant QuestionsA control chart for the fraction nonconforming is to be established using a center line of . What sample size is required if we wish to detect a shift in the process fraction nonconforming to 0.20 with probability 0.50? Draw the primary and supplementary OC curves for a double-sampling plan with . If the incoming lots have fraction nonconforming , what is the probability of acceptance on the first sample? What is the probability of final ...a. Find the normal, tightened, and reduced inspection plans. a. Draw the OC curves of the normal, tightened, and reduced inspection plans on the same graph. A soft-drink bottler purchases nonreturnable glass bottles from a supplier. The lower specification on the bursting strength of the bottles is 225 psi. The bottler wishes to use variables sampling to sentence the lots and ...Compare the plans developed in Exercise 7.33 in terms of average fraction inspected and their operating-characteristic curves. Which plan would you prefer if?
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