Questions from Operations Management

Q: Marty and Marge are renovating their house. They hope for all

Marty and Marge are renovating their house. They hope for all work to be completed before the Thanksgiving holiday, which is 55 days away. Given the data below, what is the probability that the house...

Q: Frank owns and operates a company that installs audiovisual equipment for corporate

Frank owns and operates a company that installs audiovisual equipment for corporate clients. He is currently working on a job that must be completed in 17 days. However, the project is running behind...

Q: In an article in Quality Engineering, a research article presented individual

In an article in Quality Engineering, a research article presented individual measurement data on sand compactibility, as follows: For these data, the author reported that the lower and upper specifi...

Q: Calculate the Cp and Cpk for a process characterized by the following

Calculate the Cp and Cpk for a process characterized by the following data: Production specifications: 1.00 ± 0.08 cm Process standard deviation: 0.005 cm Process distribution centered at 0.95 cm

Q: Using the data from the preceding problem, the instructor in charge

Using the data from the preceding problem, the instructor in charge of these five classes strongly feels that the arrival patterns are strongly influenced by the class (i.e., the arrival rates vary by...

Q: Suppose that you collect data for 15 samples of 30 units each

Suppose that you collect data for 15 samples of 30 units each and find that, on average, 2.5 percent of the products are defective. What are the UCL and LCL for this process?

Q: Peerless Windows is a major manufacturer and installer of windows into new

Peerless Windows is a major manufacturer and installer of windows into new homes. Currently, management has found that it has experienced a large number of customer claims (about 15% of all orders pla...

Q: A store is concerned with the number of late shipments that it

A store is concerned with the number of late shipments that it generates each day. Consequently, it decides to track the number of late shipments for the last seven days. The data are summarized in th...

Q: Using the control chart developed in the previous problem, plot the

Using the control chart developed in the previous problem, plot the following data received from the store for a 10-day period. What insights for management do you have based on your analysis?

Q: Management is concerned about the operation of its 123XYZ work center.

Management is concerned about the operation of its 123XYZ work center. From past studies, it knows that x-bar is 12.14, the LCL is 11.74, and the UCL is 12.54. The following data were collected for a...