Statistical Quality Control Practice Test 3

1. Tolerances are said to be ________

2. The process standard deviation is given by __________

3. What is the value of LCL for the s chart when the standard value for σ is not given?

4. S chart is used to monitor _________ of a quality characteristic.

5. The inner limits in the “Two sets of limits” approach of the construction of control chart are called _____

6. Process standard deviation is necessarily equal to the sample standard deviation of the same process.

7. Once a set of reliable control limits is obtained, we use the control chart for monitoring future production. This is called __________

8. If for a process, the samples are taken 5 hrs apart and its ARL is 24.24, What will be ATS for it?

9. If we decrease the distance between LCL and UCL, what will happen?

10. Decreasing sample size will ________