Questions from Total Quality Management

Q: Refer to Exercise 8-18. Construct an OC curve for

Refer to Exercise 8-18. Construct an OC curve for the p-chart. If the process proportion of dissatisfied customers were to rise to 7%, what is the probability of not detecting this shift on the first...

Q: Refer to Exercise 8-27. Construct an OC curve for

Refer to Exercise 8-27. Construct an OC curve for the c-chart. If the process average number of dietary errors per 100 trays increases to 10, what is the probability of detecting this on the first sam...

Q: Refer to Exercise 8-36. Set up 2σ control limits

Refer to Exercise 8-36. Set up 2σ control limits. What is the probability of detecting a change in the process average number of dietary errors per 100 trays to 8 on the first sample drawn...

Q: The number of heart surgery complications is rare. To monitor the

The number of heart surgery complications is rare. To monitor the effectiveness of such surgeries, data are recorded on the number of such procedures until a complication occurs. These complications o...

Q: Consider Exercise 8-38. If you were interested in detecting

Consider Exercise 8-38. If you were interested in detecting an improvement in the process using a one-sided limit, what should the minimum sample size be for an α of 0.005? What should i...

Q: Consider Exercise 8-38 under the assumption that the complication rate

Consider Exercise 8-38 under the assumption that the complication rate is 0.1%. If you were to construct a p-chart using two-sided 3σ limits, what would the minimum sample size be to detect...

Q: Consider Exercise 8-38. Determine the sensitivity of the control

Consider Exercise 8-38. Determine the sensitivity of the control limits complication rate using values of 0.2% and 0.5%. Data from Exercise 8-38: The number of heart surgery complications is rare. To...

Q: Discuss the relationship between ARL and type I and II errors.

Discuss the relationship between ARL and type I and II errors.

Q: Consider Exercise 8-38 under the assumption that the complication rate

Consider Exercise 8-38 under the assumption that the complication rate is 0.1% and a type I error of 0. 005.If you reduced the upper control limit to half of its previous value, what type of process c...

Q: Consider Exercise 8-38. However, now assume that the

Consider Exercise 8-38. However, now assume that the interval between complications follows an exponential distribution. Construct an appropriate control chart and comment on the process assuming a ty...