Regardless of the distribution of the individuals, the distribution of the average of n samples will follow which distribution as n becomes large?
An X-bar and R chart with n=5 has been plotted for some time and has demonstrated random variation. Upon review of the last 30 plot points, the expected number of runs around the centerline on the X-bar chart is expected to be approximately which of the following?
The design function which assigns probability of failures between components or subsystems is called
Which of the following is NOT a method for customer service data collection?
A box contains 27 black and 3 red balls. A random sample of 5 balls is drawn without replacement. What is the probability that the sample contains one red ball?
The MOST essential value of a surface plate in precision measurement application is which of the following?
Which of the following quality system provisions is of the greatest concern when preparing an audit checklist for a vendor qualification system audit?
Maintainability is
A bin contains 40 pills with a weight of 3.1 gm. each, 30 pills weighing 3.2 gms each and 10 pills weighing 3.3 gms each. The weight of an average pill is found from
Given the data below, what is the 90% confidence interval for the variance?
22, 23, 19, 17, 29, 25
When trying to find all possible causes of a problem, which of the following tools would be useful?
Ⅰ. Systematic troubleshooting and brainstorming.
Ⅱ. Fishbone diagrams and histograms.
Ⅲ. Checklists and scatter diagrams.
Ⅳ. Control charts and graphs.
The use of 100% inspection normally means
The existence of a quality control manual at your key supplier means
The primary advantage of the Latin square design, compared to the factorial design, is that
The difference between setting alpha equal to 0.05 and alpha equal to 0.01 in hypothesis testing is
A product failure in the customer's hands is bad for the company. Why do only 4% of the customers normally file a complaint?
Writing and establishing process control procedures is
The critical value of the t-distribution is
When requesting "worst case" design analysis, you expect the reliability group to
When used together for variables data, which of the following pair is the MOST useful in preparing control charts?
What is the highest form of partnering with employees?
As the scatter of points about a regression line becomes less, r2 will
The steeper the OC-curve, the
Measurement gaging is preferable to go, no-go gaging of a quality characteristic because