Question: The Fred and Barney Cookie Co. has decided to implement statistical quality control to its chocolate chip cookie baking line. The company is concerned that

The Fred and Barney Cookie Co. has decided to implement statistical quality control to its chocolate chip cookie baking line. The company is concerned that it has been providing too many burned cookies. Two times per day over the last 5 days, the company has taken samples of 250 cookies and counted the number of burned cookies in each sample. A burned cookie is considered a defective cookie. The results are shown below. The company wants use 2 control limits.

Sample 1 2 3 4 5 6 7 8 9 10

Number of Burned Cookies 4 2 3 3 4 4 5 6 6 7

a. Develop a P chart

b. Is this in control?

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