Mgmt 300: Chapter 13: Statistical Quality
Control Quiz correctly answered
The capability index (Cpk) calculates the percentage of items being produced within
specifications. - correct answer ✔✔False
Standard practice in statistical process control for variables is to set control limits so that 95
percent of the sample means will fall within the UCL and the LCL. - correct answer ✔✔False
In monitoring process quality, we might use which of the following statistics? - correct answer
✔✔Difference between the highest and lowest value in a sample
You have just used the capability index (Cpk) formulas to compute the two values "min [2, 2.5]."
Which of the following is the proper interpretation of these numbers? - correct answer ✔✔The
mean of the production process has shifted to the left of the design limits.
Quality control charts usually have a central line and upper and lower control limit lines. Which
of the following is not a reason that the process being monitored with the chart should be
investigated? - correct answer ✔✔There is a change in raw materials or operators.
Quality control charts usually have a central line and upper and lower control limit lines. Which
of the following is a reason that the process being monitored with the chart should be
investigated? - correct answer ✔✔A single point falls above or below the control limits.
For which of the following should we use a p-chart to monitor process quality? - correct answer
✔✔Defective electrical switches
Control Quiz correctly answered
The capability index (Cpk) calculates the percentage of items being produced within
specifications. - correct answer ✔✔False
Standard practice in statistical process control for variables is to set control limits so that 95
percent of the sample means will fall within the UCL and the LCL. - correct answer ✔✔False
In monitoring process quality, we might use which of the following statistics? - correct answer
✔✔Difference between the highest and lowest value in a sample
You have just used the capability index (Cpk) formulas to compute the two values "min [2, 2.5]."
Which of the following is the proper interpretation of these numbers? - correct answer ✔✔The
mean of the production process has shifted to the left of the design limits.
Quality control charts usually have a central line and upper and lower control limit lines. Which
of the following is not a reason that the process being monitored with the chart should be
investigated? - correct answer ✔✔There is a change in raw materials or operators.
Quality control charts usually have a central line and upper and lower control limit lines. Which
of the following is a reason that the process being monitored with the chart should be
investigated? - correct answer ✔✔A single point falls above or below the control limits.
For which of the following should we use a p-chart to monitor process quality? - correct answer
✔✔Defective electrical switches
