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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. \(C_i^+=min[0,(μ_0-K)-x_i+C_{i-1}^+ ]\) | |