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This section includes 12 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. |
Which of these does not have the LCL and UCL at 3? |
A. | Standardized u-chart |
B. | Standardized R-chart |
C. | Standardized c-chart |
D. | Standardized p-chart |
Answer» C. Standardized c-chart | |
2. |
Which of these correctly shows the correct values for standardized u-chart in the order of CL, UCL and LCL? |
A. | 0, 3 and -3 |
B. | 3, 0 and -3 |
C. | 0, -3 and 3 |
D. | -3, 0 and 3 |
Answer» B. 3, 0 and -3 | |
3. |
The center line of the np-chart is at _______ |
A. | -2 |
B. | +2 |
C. | 0 |
D. | 3 |
Answer» D. 3 | |
4. |
The LCL of the standardized p-chart is ________ |
A. | -2 |
B. | +3 |
C. | -1 |
D. | -3 |
Answer» E. | |
5. |
The upper limit of the standardized c-chart for short production runs is ________ |
A. | 1 |
B. | 2 |
C. | -3 |
D. | +3 |
Answer» E. | |
6. |
What is the value of the statistic plotted on the standardized np-chart? |
A. | (z_i= frac{n hat{p}_i+n bar{p}}{ sqrt{n bar{p}(1+ bar{p})}} ) |
B. | (z_i= frac{n hat{p}_i-n bar{p}}{ sqrt{n bar{p}(1+ bar{p})}} ) |
C. | (z_i= frac{n hat{p}_i+n bar{p}}{ sqrt{n bar{p}(1- bar{p})}} ) |
D. | (z_i= frac{n hat{p}_i-n bar{p}}{ sqrt{n bar{p}(1- bar{p})}} ) |
Answer» E. | |
7. |
What is the standard deviation of the number of nonconformities per unit, when the standardized u-chart is used for monitoring the process? |
A. | ( sqrt{ frac{ bar{u}}{2n}} ) |
B. | ( sqrt{ frac{ bar{u}}{n}} ) |
C. | ( frac{ sqrt{u}}{n} ) |
D. | ( sqrt{ bar{u}} ) |
Answer» C. ( frac{ sqrt{u}}{n} ) | |
8. |
The attribute ui when plotted on standardized control chart for short production runs, the statistic plotted on the chart has the value equal to __________ |
A. | (Z_i= frac{u_i- bar{u}}{ sqrt{ frac{ bar{u}}{n}}} ) |
B. | (Z_i= frac{u_i+2 bar{u}}{ sqrt{ frac{ bar{u}}{n}}} ) |
C. | (Z_i= frac{u_i+ bar{u}}{ sqrt{ frac{ bar{u}}{n}}} ) |
D. | (Z_i= frac{u_i-2 bar{u}}{ sqrt{ frac{ bar{u}}{n}}} ) |
Answer» B. (Z_i= frac{u_i+2 bar{u}}{ sqrt{ frac{ bar{u}}{n}}} ) | |
9. |
What is the value of the statistic to be plotted on the standardized c-chart which is designed to run in the short production? |
A. | (Z_i= frac{c_i+2 bar{c}}{ sqrt{ bar{c}}} ) |
B. | (Z_i= frac{c_i-2 bar{c}}{ sqrt{ bar{c}}} ) |
C. | (Z_i= frac{c_i- bar{c}}{ sqrt{ bar{c}}} ) |
D. | (Z_i= frac{c_i+ bar{c}}{ sqrt{ bar{c}}} ) |
Answer» C. (Z_i= frac{c_i- bar{c}}{ sqrt{ bar{c}}} ) | |
10. |
What is the standard deviation value for the standardized c chart used for the short production runs? |
A. | ( sqrt{c} ) |
B. | ( sqrt{ bar{c}} ) |
C. | ( bar{c} ) |
D. | ( hat{c} ) |
Answer» C. ( bar{c} ) | |
11. |
What is the value of standard deviation for the standardized p-chart for short production runs? |
A. | ( sqrt{ frac{ bar{p}(1- bar{p})}{n}} ) |
B. | ( sqrt{ frac{ bar{p}(1+ bar{p})}{n}} ) |
C. | ( sqrt{ frac{ bar{p}( bar{p}-1)}{n}} ) |
D. | ( sqrt{ frac{ bar{p}(1- bar{p})}{2n}} ) |
Answer» B. ( sqrt{ frac{ bar{p}(1+ bar{p})}{n}} ) | |
12. |
What is the statistic used to plot on control chart for a standardized p-chart for short production runs? |
A. | (Z_i= frac{ hat{p}_i+ bar{p}}{ frac{ sqrt{ bar{p}(1+ bar{p})}}{n}} ) |
B. | (Z_i= frac{ hat{p}_i- bar{p}}{ frac{ sqrt{ bar{p}(1- bar{p})}}{n}} ) |
C. | (Z_i= frac{ hat{p}_i- bar{p}}{ frac{ sqrt{ bar{p}(1+ bar{p})}}{n}} ) |
D. | (Z_i= frac{ hat{p}_i+ bar{p}}{ frac{ sqrt{ bar{p}(1- bar{p})}}{n}} ) |
Answer» C. (Z_i= frac{ hat{p}_i- bar{p}}{ frac{ sqrt{ bar{p}(1+ bar{p})}}{n}} ) | |