ASQ ASQ Certifications CSSGB Questions & Answers

• Question 291:

  Calculate the actual process yield using the empirical data.

  Correct Answer: 80 ÷ 84 = 0.952

• Question 292:

  Calculate the theoretical process yield using the normal distribution. Is this a reasonable calculation? If yes, why? If no, why not?

  Correct Answer: Check the answer in explanation.

  ZLSL= (5.95 – 6.024)/ 0.01139 = -6.4969, hence, P( X < -6.4969) = 0.0000 ZUSL= (6.05 – 6.024)/ 0.01139 = 2.2827, hence, P( X > -2.2827) = 0.0112 P (5.95 ≤ X ≤ 6.05) = 0.0000 + 0.0112 = 0.0112

  The above calculation is not reasonable because the process is not in statistical control.

• Question 293:

  Compute the actual DPMO from the empirical data.

  Correct Answer: Check the answer in explanation.

  DPO = 1 – RTY = 1 – 0.952 = 0.048 DPMO = 1,000,000 x DPO = 1,000,000 x 0.048 = 48,000 DPMO

• Question 294:

  Compute the theoretical DPMO using the normal distribution. Is this a reasonable calculation? If yes, why? If no, why not?

  Correct Answer: Check the answer in explanation.

  DPO = 0.0112 DPMO = 1,000,000 x 0.0112 = 11,200

  The DPMO calculation is not reasonable because the process is not stable at this time.

• Question 295:

  Compute the Process SigmA. Which DPMO should you use? Why?

  Correct Answer: Check the answer in explanation.

  Process sigma assuming a 1.5 sigma shift in the mean for the empirical DPMO of 11,200 is 3.1 to 3.2.

  Process sigma assuming a 1.5 sigma shift in the mean for the theoretical DPMO of 48,000 is 3.7 to 3.8.

  Neither DPMO should be used because the process is not stable. A process sigma calculation is not appropriate for this process at this time.

• Question 296:

  Construct a control chart from the following data.

  Correct Answer: Check the answer in explanation.

  

• Question 297:

  What type of data is in the above matrix?

  Correct Answer: Classification type attribute data

• Question 298:

  What type of control chart should be used to study the above data?

  Correct Answer: p chart with constant subgroup size

• Question 299:

  Use Minitab to construct a control chart for the above data.

  Correct Answer: Check the answer in explanation.

  

• Question 300:

  Is the process stable? If not, on what days is it not stable?

  Correct Answer: Days 8 and 22 are beyond the upper control limit.