A quality auditor records the following times (in minutes) for 8 samples from the process: 5, 7, 9, 10, 10, 12, 14, 15. Calculate the standard deviation.
A service company has a process for responding to customer inquiries. The upper specification limit for response time is 2 hours, the lower specification limit is 1 hour, and the process average is 1.5 hours. The standard deviation for this process is 0.2 hours. What is the Cp value for this process?
A company needs to choose 3 employees to serve as team leaders for a new project. There are a total of 10 employees to choose from. How many different combinations of team leaders are possible?