Question: number 8 part a and b Construct a 3-sigma control chart (z = 3) with this information. 8. A tire manufacturer has been concerned about

number 8 part a and b number 8 part a and b Construct a 3-sigma control

Construct a 3-sigma control chart (z = 3) with this information. 8. A tire manufacturer has been concerned about the number of defective tires found recently. In order to evaluate the true magnitude of the problem, a production manager selected ten random samples of twenty units each for inspection. The num- ber of defective tires found in each sample are as follows: (a) Develop a p-chart with a z= 3. (b) Suppose that the next four samples selected had 6, 3,3, and 4 defects. What conclusion can you make? Sample Number Defective 1 3 2 1 2 3 4 5 6 7 8 9 10 1 2 0 3 1 Send message

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