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 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 researcher wants to determine the average salary of technicians in a certain field. From a sample of 100 technicians, the mean salary is $50,000, with a standard deviation of $12,000. What is the 95% confidence interval for this data?
Which type of audit is performed by an organization on its suppliers or subcontractors to ensure their products or services meet required standards and specifications?