Question 1

A major distributor buys shoes from a supplier. The distributor randomly samples the shoes to inspect for quality. The distributor's specifications state that a delivery of 100 pairs of shoes will be accepted only if the number of defective pairs of shoes in a sample of 10 pairs is two or less. Based on the sampling plan, what is the probability of accepting the delivery of 100 pairs of shoes if the actual percent defective is 0.80?

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Question 2

What is the purpose of quality control in production and service operations?

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Question 3

A major distributor buys shoes from a supplier. The distributor randomly samples the shoes to inspect for quality. The distributor's specifications state that a delivery of 100 pairs of shoes will be accepted only if the number of defective pairs of shoes in a sample of 10 pairs is two or less. Based on the sampling plan, what is the probability of accepting the delivery of 100 pairs of shoes if the actual percent defective is 0.10?

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Question 4

A major distributor buys shoes from a supplier. The distributor randomly samples the shoes to inspect for quality. The distributor's specifications state that a delivery of 100 pairs of shoes will be accepted only if the number of defective pairs of shoes in a sample of 10 pairs is two or less. Based on the sampling plan, what is the probability of accepting the delivery of 100 pairs of shoes if the actual percent defective is 0.50?

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Question 5

A manufacturer of golf club shafts inspects 50 shafts every day. Over the last ten days, the number of defective shafts has been reported to be the following.  What is the standard error of the mean proportion of defective shafts?

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Question 6

The manager of a restaurant inspects a delivery of steaks based on the expectation that each steak weighs eight ounces. Is this an example of acceptance sampling or statistical process control? Explain why.

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Question 7

The manager of a restaurant measures several variables important to quality. These include food temperature, time to complete an order, and number of times a server visits a table. These variables are graphed over time. Is this an example of acceptance sampling or statistical process control?

Accepted Answer

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Question 8

A major distributor buys shoes from a supplier. The distributor randomly samples the shoes to inspect for quality. The distributor's specifications state that a delivery of 50 pairs of shoes will be accepted only if the number of defective pairs of shoes in a sample of 5 pairs is two or less. Based on the sampling plan, what is the probability of accepting the delivery of 50 pairs of shoes if the actual percent defective is 0.40?

Accepted Answer

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Question 9

Over the last ten days, a manufacturer of cell phones counts the number of defective phones created in each eight-hour shift. The results are shown next.  What is the average number of defective phones per eight-hour shift?

Accepted Answer

The answer of Over the last ten days, a manufacturer...

Question 10

A major distributor buys shoes from a supplier. The distributor randomly samples the shoes to inspect for quality. The distributor's specifications state that a delivery of 100 pairs of shoes will be accepted only if the number of defective pairs of shoes in a sample of 10 pairs is two or less. Based on the sampling plan, what is the probability of accepting the delivery of 100 pairs of shoes if the actual percent defective is 0.05?

Accepted Answer

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Question 11

Explain the risks of acceptance sampling.

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Question 12

A manufacturer of golf club shafts inspects 50 shafts every day. Over the last ten days, the number of defective shafts has been reported to be the following.  To construct a process control chart for the mean percent defective, what is the lower control limit?

Accepted Answer

The answer of A manufacturer of golf club shafts inspects...

Question 13

Over the last ten days, a manufacturer of cell phones counts the number of defective phones created in each eight-hour shift. The results are shown next.  To construct a process control chart for the mean number defective, what is the upper control limit?

Accepted Answer

The answer of Over the last ten days, a manufacturer...

Question 14

Over the last ten days, a manufacturer of cell phones counts the number of defective phones created in each eight-hour shift. The results are shown next.  To construct a process control chart for the mean number defective, what is the lower control limit?

Accepted Answer

The answer of Over the last ten days, a manufacturer...

Question 15

A manufacturer of golf club shafts inspects 50 shafts every day. Over the last ten days, the number of defective shafts has been reported to be the following.  To construct a process control chart for the mean percent defective, what is the upper control limit?

Accepted Answer

The answer of A manufacturer of golf club shafts inspects...

Question 16

A major distributor buys shoes from a supplier. The distributor randomly samples the shoes to inspect for quality. The distributor's specifications state that a delivery of 100 pairs of shoes will be accepted only if the number of defective pairs of shoes in a sample of 10 pairs is two or less. Based on the sampling plan, what is the probability of accepting the delivery of 100 pairs of shoes if the actual percent defective is 0.00?

Accepted Answer

The answer of A major distributor buys shoes from a...

Quiz 19: Statistical Process Control and Quality Management

What is the purpose of quality control in production and service operations?

A manufacturer of golf club shafts inspects 50 shafts every day. Over the last ten days, the number of defective shafts has been reported to be the following. What is the standard error of the mean proportion of defective shafts?

The manager of a restaurant inspects a delivery of steaks based on the expectation that each steak weighs eight ounces. Is this an example of acceptance sampling or statistical process control? Explain why.

The manager of a restaurant measures several variables important to quality. These include food temperature, time to complete an order, and number of times a server visits a table. These variables are graphed over time. Is this an example of acceptance sampling or statistical process control?

Over the last ten days, a manufacturer of cell phones counts the number of defective phones created in each eight-hour shift. The results are shown next. What is the average number of defective phones per eight-hour shift?

Explain the risks of acceptance sampling.

A manufacturer of golf club shafts inspects 50 shafts every day. Over the last ten days, the number of defective shafts has been reported to be the following. To construct a process control chart for the mean percent defective, what is the lower control limit?

Over the last ten days, a manufacturer of cell phones counts the number of defective phones created in each eight-hour shift. The results are shown next. To construct a process control chart for the mean number defective, what is the upper control limit?

Over the last ten days, a manufacturer of cell phones counts the number of defective phones created in each eight-hour shift. The results are shown next. To construct a process control chart for the mean number defective, what is the lower control limit?

A manufacturer of golf club shafts inspects 50 shafts every day. Over the last ten days, the number of defective shafts has been reported to be the following. To construct a process control chart for the mean percent defective, what is the upper control limit?