A company that produces USB memory sticks has been receiving complaints from its customers about the...

 

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A company that produces USB memory sticks has been receiving complaints from its customers about the large number of devices that will not store data properly. Company management has decided to institute statistical process control to remedy the problem. Every hour, a random sample of 200 memory sticks is taken, and each is tested to deter- mine whether it is defective. The number of defective memory sticks in the samples of size 200 for the first 40 hours is shown in table 3.3 below. Using these data, draw a p chart to monitor the production process. Was the process out of control when the sample results were generated? 19 5 16 20 6 12 18 6 13 15 10 6 7 10 18 20 13 6 8 3 8 4 19 3 19 9. 10 10 18 15 16 5 14 3 10 19 13 19 9 Table 3.3: Number of defective memory sticks in 40 consecutive samples of size 200 A company that produces USB memory sticks has been receiving complaints from its customers about the large number of devices that will not store data properly. Company management has decided to institute statistical process control to remedy the problem. Every hour, a random sample of 200 memory sticks is taken, and each is tested to deter- mine whether it is defective. The number of defective memory sticks in the samples of size 200 for the first 40 hours is shown in table 3.3 below. Using these data, draw a p chart to monitor the production process. Was the process out of control when the sample results were generated? 19 5 16 20 6 12 18 6 13 15 10 6 7 10 18 20 13 6 8 3 8 4 19 3 19 9. 10 10 18 15 16 5 14 3 10 19 13 19 9 Table 3.3: Number of defective memory sticks in 40 consecutive samples of size 200

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Solution Step 1 To draw a pchart we will populate the data shown in ... View the full answer