Exam 19: Statistical Process Control and Quality Management

A subassembly is inspected and the number of defects recorded. A new group of assemblers began work Monday morning. The number of defects per subassembly for the first 10 they produced was: 3, 2, 0, 5, 4, 6, 0, 7, 7, and 6. What are the upper and lower limits for the c bar chart?

(Multiple Choice)

4.9/5

(40)

Question 81

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?

(Essay)

4.8/5

(18)

Question 82

An airline is investigating the causes of lost bags. The following table of data was collected over the last six months. What percentage of bags is lost because of "conveyer jams"?

(Short Answer)

4.8/5

(33)

Question 83

Random samples of 4 items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, $\Sigma$ X = 15,350 and $\Sigma$ R = 411.4 The measurement of quality is based on

(Multiple Choice)

4.7/5

(36)

Question 84

What is the process that insures that a company is producing a quality product or service?

(Multiple Choice)

5.0/5

(33)

Question 85

A new printing machine is set or calibrated to print 25 copies per minute. On each of four days, the printer's output is measured five times. The data will be used to construct a process control chart to monitor the printing process. The results of the printing process are in the following table. What is the range of the samples on Day 3?

(Short Answer)

4.9/5

(44)

Question 86

A sampling plan states that if 20 incoming transistors are checked and 2 or less defects are found that the lot is accepted. If an incoming lot is 10 percent defective, what is the probability of accepting the lot of transistors?

(Multiple Choice)

4.8/5

(32)

Question 87

If the upper and lower control limits are set at $\pm$ 3 standard deviations from the mean, we would expect that

(Multiple Choice)

4.9/5

(43)

Question 88

A quality control chart is used to monitor the customer wait time at a local call center. Sample means of five times are averaged and plotted over time. Over the last hundred sample means, one sample mean was outside a control limit. The chart shows

(Multiple Choice)

4.8/5

(33)

Question 89

Percent defective charts, which are also known as P charts or p bar charts, show the percent of the production that is or is not acceptable.

(True/False)

4.7/5

(37)

Question 90

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is X bar for 7 pm?

(Multiple Choice)

4.9/5

(40)

Question 91

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is the value for the lower control limit (LCL) of the range?

(Multiple Choice)

4.8/5

(34)

Question 92

Which probability distribution is used to develop a percent defective chart?

(Multiple Choice)

4.8/5

(45)

Question 93

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is the mean range?

(Multiple Choice)

4.9/5

(30)

Question 94

In a fishbone diagram, "dissatisfied customers" would be an _ and "slow service" would be a _.

(Short Answer)

4.9/5

(38)

Question 95

Quality control charts indicate whether a production process is in-control or out-of-control.

(True/False)

4.8/5

(34)

Question 96

In an acceptance sampling plan, what happens to the incoming lot if the number of defective items in the sample is less than or equal to the acceptance number? __________________

(Short Answer)

4.9/5

(38)

Question 97

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?

(Short Answer)

4.8/5

(40)

Question 98

In acceptance sampling, it is possible that an incoming lot of computer chips contains more defective chips than it should, but it is accepted. In acceptance sampling, what is this probability called? _______

(Short Answer)

4.8/5

(44)

Question 99

What is usually developed to evaluate a sampling plan?

(Multiple Choice)

4.8/5

(42)

Question 100

Showing 81 - 100 of 129

A subassembly is inspected and the number of defects recorded. A new group of assemblers began work Monday morning. The number of defects per subassembly for the first 10 they produced was: 3, 2, 0, 5, 4, 6, 0, 7, 7, and 6. What are the upper and lower limits for the c bar chart?

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?

An airline is investigating the causes of lost bags. The following table of data was collected over the last six months. What percentage of bags is lost because of "conveyer jams"?

Random samples of 4 items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, $\Sigma$ X = 15,350 and $\Sigma$ R = 411.4 The measurement of quality is based on

What is the process that insures that a company is producing a quality product or service?

A sampling plan states that if 20 incoming transistors are checked and 2 or less defects are found that the lot is accepted. If an incoming lot is 10 percent defective, what is the probability of accepting the lot of transistors?

If the upper and lower control limits are set at $\pm$ 3 standard deviations from the mean, we would expect that

A quality control chart is used to monitor the customer wait time at a local call center. Sample means of five times are averaged and plotted over time. Over the last hundred sample means, one sample mean was outside a control limit. The chart shows

Percent defective charts, which are also known as P charts or p bar charts, show the percent of the production that is or is not acceptable.

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is X bar for 7 pm?

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is the value for the lower control limit (LCL) of the range?

Which probability distribution is used to develop a percent defective chart?

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is the mean range?

In a fishbone diagram, "dissatisfied customers" would be an _ and "slow service" would be a _.

Quality control charts indicate whether a production process is in-control or out-of-control.

In an acceptance sampling plan, what happens to the incoming lot if the number of defective items in the sample is less than or equal to the acceptance number? __________________

In acceptance sampling, it is possible that an incoming lot of computer chips contains more defective chips than it should, but it is accepted. In acceptance sampling, what is this probability called? _______

What is usually developed to evaluate a sampling plan?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

An Introduction to Decision Theory

Filters

Exam 19: Statistical Process Control and Quality Management

A subassembly is inspected and the number of defects recorded. A new group of assemblers began work Monday morning. The number of defects per subassembly for the first 10 they produced was: 3, 2, 0, 5, 4, 6, 0, 7, 7, and 6. What are the upper and lower limits for the c bar chart?

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?

An airline is investigating the causes of lost bags. The following table of data was collected over the last six months. What percentage of bags is lost because of "conveyer jams"?

Random samples of 4 items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, Σ\SigmaΣ X = 15,350 and Σ\SigmaΣ R = 411.4 The measurement of quality is based on

What is the process that insures that a company is producing a quality product or service?

A sampling plan states that if 20 incoming transistors are checked and 2 or less defects are found that the lot is accepted. If an incoming lot is 10 percent defective, what is the probability of accepting the lot of transistors?

If the upper and lower control limits are set at ±\pm± 3 standard deviations from the mean, we would expect that

A quality control chart is used to monitor the customer wait time at a local call center. Sample means of five times are averaged and plotted over time. Over the last hundred sample means, one sample mean was outside a control limit. The chart shows

Percent defective charts, which are also known as P charts or p bar charts, show the percent of the production that is or is not acceptable.

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is X bar for 7 pm?

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is the value for the lower control limit (LCL) of the range?

Which probability distribution is used to develop a percent defective chart?

A new machine is set or calibrated to fill tubes of toothpaste at precisely 6.75 ounces. Then, once the machine is running, a sample of 6 tubes is taken every three hours and weighed with the following results: What is the mean range?

In a fishbone diagram, "dissatisfied customers" would be an _________ and "slow service" would be a _________.

Quality control charts indicate whether a production process is in-control or out-of-control.

In an acceptance sampling plan, what happens to the incoming lot if the number of defective items in the sample is less than or equal to the acceptance number? __________________

In acceptance sampling, it is possible that an incoming lot of computer chips contains more defective chips than it should, but it is accepted. In acceptance sampling, what is this probability called? _______

What is usually developed to evaluate a sampling plan?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

An Introduction to Decision Theory

Filters

Random samples of 4 items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples, $\Sigma$ X = 15,350 and $\Sigma$ R = 411.4 The measurement of quality is based on

If the upper and lower control limits are set at $\pm$ 3 standard deviations from the mean, we would expect that

In a fishbone diagram, "dissatisfied customers" would be an _ and "slow service" would be a _.