Explore topic-wise MCQs in Statistical Quality Control.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Statistical Quality Control knowledge and support exam preparation. Choose a topic below to get started.

1.

The starting value of the variable zi is always equal to 0.

A. True
B. False
Answer» C.
Discussion
2.

If the observations xi are independent random variables with variance 2 then according to the EWMA charts, the variance of zi will be ________________

A. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1+(1+ )^{2i}] )
B. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1+(1- )^{2i}] )
C. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1-(1- )^{2i}] )
D. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2+ })[1-(1- )^{2i}] )
Answer» D. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2+ })[1-(1- )^{2i}] )
Discussion
3.

Which of these is the use of the EWMA charts?

A. In time series modeling
B. In Real-time processing
C. In acceptance sampling
D. In designing of experiments
Answer» B. In Real-time processing
Discussion
4.

GMA stands for ___________

A. Geosum moved average
B. Geometric Moving average
C. Geometrically moved average
D. Geocentric moving average
Answer» C. Geometrically moved average
Discussion
5.

Which of these is another name of EWMA charts?

A. GMA charts
B. AMA charts
C. EMA charts
D. RMA charts
Answer» B. AMA charts
Discussion
6.

Which of these is correct for in EWMA expression?

A. 0 >
B. 1 <
C. 1
D. 0 < 1
Answer» E.
Discussion
7.

EWMA charts are better than Shewhart control charts in detecting the ___________ shifts.

A. Large process
B. Medium process
C. Small process
D. Every process
Answer» D. Every process
Discussion