TECH 3310 EXAM 2 questions and
answers already passed
Variable control charts are drawn from collected data with the sample size of 5, the X-bar =
0.0028, and the s-bar = 0.0003. Which pair of the following list of answers shows control limit
for X-bar? - correct answer ✔✔0.0032 and 0.0024
An inspection on shaft diameter of sample size n=5 shows X-bar = 349, and R-bar = 14. The
control limits for X-bar is: - correct answer ✔✔357 and 341
Which of the following statements is NOT correct about control charts? - correct answer ✔✔An
inspection criterion
For subgroups of sample size 8, the R-bar is 0.05, which one of the following choices represents
the UCLR and LCLR? - correct answer ✔✔0.0932 and 0.0068
Average temperatures were measured at five randomly selected soups. The X-bar and R-bar
were found 45.25 degree and 1.05 degree, respectively. The UCLR and LCLR are: - correct
answer ✔✔2.22 and 0.0
Samples (n = 5) of a process with X-bar = 16 mm, and R-bar = 7 mm. The upper and lower
specifications are 21 mm and 13 mm. Which one of the following is true value of Cpk? - correct
answer ✔✔0.33
A current process targeted for 25 min ± 4 min completion. It has an average of 25 min, with an
average range of 3 min and sample size 6. Which of the following pairs gives correct Cp and σ
value? - correct answer ✔✔1.13 and 1.18
answers already passed
Variable control charts are drawn from collected data with the sample size of 5, the X-bar =
0.0028, and the s-bar = 0.0003. Which pair of the following list of answers shows control limit
for X-bar? - correct answer ✔✔0.0032 and 0.0024
An inspection on shaft diameter of sample size n=5 shows X-bar = 349, and R-bar = 14. The
control limits for X-bar is: - correct answer ✔✔357 and 341
Which of the following statements is NOT correct about control charts? - correct answer ✔✔An
inspection criterion
For subgroups of sample size 8, the R-bar is 0.05, which one of the following choices represents
the UCLR and LCLR? - correct answer ✔✔0.0932 and 0.0068
Average temperatures were measured at five randomly selected soups. The X-bar and R-bar
were found 45.25 degree and 1.05 degree, respectively. The UCLR and LCLR are: - correct
answer ✔✔2.22 and 0.0
Samples (n = 5) of a process with X-bar = 16 mm, and R-bar = 7 mm. The upper and lower
specifications are 21 mm and 13 mm. Which one of the following is true value of Cpk? - correct
answer ✔✔0.33
A current process targeted for 25 min ± 4 min completion. It has an average of 25 min, with an
average range of 3 min and sample size 6. Which of the following pairs gives correct Cp and σ
value? - correct answer ✔✔1.13 and 1.18
