Explore topic-wise MCQs in Statistical Quality Control.

This section includes 15 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 generally used value of K is the only value, which substantially impact the performance of the cusum.

A. True
B. False
Answer» C.
2.

If the value of μ0 > μ1, K will have a negative value.

A. True
B. False
Answer» C.
3.

After the value of Ci– increasing than the value of _____ the process is said to be out-of-control.

A. Control interval
B. Decision interval
C. Distribution interval
D. Calculation interval
Answer» C. Distribution interval
4.

Which of these is always correct?

A. \(C_i^-≥0 \)
B. \(C_i^-≤0\)
C. \(C_i^->1.323\)
D. \(C_i^-<-1.323\)
Answer» B. \(C_i^-≤0\)
5.

If the value of the quantity ”\((μ_0-K)-x_i+C_{i-1}^-\)” becomes negative, what will be the value of the value Ci–?

A. Negative
B. Positive
C. Zero
D. Can be both, ±1
Answer» D. Can be both, ±1
6.

What is the starting value of the one-sided lower cusum?

A. 1.5
B. -1.5
C. 0
D. .3
Answer» D. .3
7.

What is the starting value of one-sided upper cusum?

A. 1
B. 6
C. 5
D. 0
Answer» E.
8.

What is the value of K in the terms of out-of-control mean and the target mean?

A. \(K=\frac{|μ_0-μ_1|}{2}\)
B. \(K=\frac{|μ_1-μ_0|}{2}\)
C. \(K=\frac{|μ_1-μ_0|}{4}\)
D. \(K=3\frac{|μ_1-μ_0|}{4}\)
Answer» C. \(K=\frac{|μ_1-μ_0|}{4}\)
9.

What is the value of μ1(out-of-control mean) in the terms of the actual target mean μ0, and the shift?

A. μ1=μ0+δσ
B. μ1=μ0+2δσ
C. μ1=μ0+\(\frac{δ}{2}\)σ
D. μ1=μ0-δσ
Answer» B. μ1=μ0+2δσ
10.

What is the value δ is called, when used in the expression of K?

A. The shift of mean in standard deviation units
B. The shift of variance in standard deviation units
C. The shift of standard deviation in mean units
D. The shift of mean in variance units
Answer» B. The shift of variance in standard deviation units
11.

The value of the reference value is chosen ____________

A. 3/4 ways between mean and the out-of-control mean towards the mean
B. 1/2 ways between mean and the out-of-control mean
C. 3/4 ways between mean and the out-of-control mean towards the out-of-control mean
D. 1/4 ways between mean and the out-of-control mean towards the mean
Answer» C. 3/4 ways between mean and the out-of-control mean towards the out-of-control mean
12.

Which of these is another name of the reference value?

A. Regarding value
B. Stoppage value
C. Stack value
D. Assignable value
Answer» D. Assignable value
13.

What is K called in the expressions of the one-sided Cusums?

A. Regarded value
B. Related value
C. Resultant value
D. Reference value
Answer» E.
14.

What is the value of one sided lower cusum?

A. \(C_i^-=min⁡[0,x_i-(μ_0+K)+C_{i-1}^-]\)
B. \(C_i^-=max⁡[0,x_i-(μ_0+K)+C_{i-1}^-]\)
C. \(C_i^-=min⁡[0,(μ_0-K)-x_i+C_{i-1}^-]\)
D. \(C_i^-=max⁡[0,(μ_0-K)-x_i+C_{i-1}^-]\)
Answer» E.
15.

Which of these is a correct expression for the one sided upper cusum?

A. \(C_i^+=min⁡[0,x_i-(μ_0+K)+C_{i-1}^+]\)
B. \(C_i^+=max⁡[0,x_i-(μ_0+K)+C_{i-1}^+]\)
C. \(C_i^+=min⁡[0,(μ_0-K)-x_i+C_{i-1}^+ ]\)
D. \(C_i^+=max⁡[0,(μ_0-K)-x_i+C_{i-1}^+]\)
Answer» C. \(C_i^+=min⁡[0,(μ_0-K)-x_i+C_{i-1}^+ ]\)