Questions from General Operations Management

Q: Computer upgrade times (in minutes) are being evaluated. Samples

Computer upgrade times (in minutes) are being evaluated. Samples of five observations each have been taken, and the results are as listed. Using factors from Table 10.3, determine upper and lower cont...

Q: Explain the plan-do-study-act cycle.

Explain the plan-do-study-act cycle.

Q: Using samples of 200 credit card statements, an auditor found the

Using samples of 200 credit card statements, an auditor found the following: a. Determine the fraction defective in each sample. b. If the true fraction defective for this process is unknown, what i...

Q: Give two examples of unethical behavior for each of these areas:

Give two examples of unethical behavior for each of these areas: inspection, process control, process capability. For each, name the relevant ethical principle

Q: A medical facility does MRIs for sports injuries. Occasionally a test

A medical facility does MRIs for sports injuries. Occasionally a test yields inconclusive results and must be repeated. Using the following sample data and n = 200, determine the upper and lower contr...

Q: The postmaster of a small western town receives a certain number of

The postmaster of a small western town receives a certain number of complaints each day about mail delivery. Determine three-sigma control limits using the following data. Is the process in control?...

Q: (Refer to the data in Example 5.) Two additional observations

(Refer to the data in Example 5.) Two additional observations have been taken. The first resulted in three defects, and the second had four defects. Using the set of 20 observations, perform run tests...

Q: Given the following data for the number of defects per spool of

Given the following data for the number of defects per spool of cable, using three-sigma limits, is the process in control?

Q: After a number of complaints about its directory assistance, a telephone

After a number of complaints about its directory assistance, a telephone company examined samples of calls to determine the frequency of wrong numbers given to callers. Each sample consisted of 100 ca...

Q: Specifications for a metal shaft are much wider than the machine used

Specifications for a metal shaft are much wider than the machine used to make the shafts is capable of. Consequently, the decision has been made to allow the cutting tool to wear a certain amount befo...