The failure rate model above is used to show a typical relationship of many parts between their failure rate and the time in service. The reliability function for period "B" is BEST represented by

Of the services listed below, which one performed by design engineering is of particular interest to QA personnel?

Given the data below is normally distributed, and the population standard deviation is 3.1, what is the 90% confidence interval for the mean?
22, 23, 19, 17, 29, 25

A process is in control with a defect rate of 0.2%. A sampling plans calls for 30 items to be selected at random, and for the process to be shut down and corrected if any defects are found. How often will the process be shut down without a change in the defect rate?

The example of a supplier's quality management effort to meet your existing contractual requirements is MOST like
I. A product audit.
II. A process audit.
III. A system audit.