GSCM 326 Week 6 Quiz Latest

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GSCM 326 Week 6 Quiz Latest

GSCM326

GSCM 326 Week 6 Quiz Latest

 

GSCM 326 Week 6 Quiz Latest

Question : (TCO 11) The component of statistical methodology that includes the collection, organization, and summarization of data is called

  • descriptive statistics.
  • probability distribution.
  • statistical inference.
  • predictive statistics.

Question 2. Question : (TCO 11) A simple random sample is often use to estimate

  • point estimates.
  • random variables.
  • statistics.
  • population parameters.

Question 3. Question : (TCO 11) Which of the following is not a type of sampling scheme?

  • Stratified sampling
  • Biased sampling
  • Cluster sampling
  • Judgment sampling

Question 4. Question : (TCO 11) If _____ is not used, _____ may be introduced.

  • random sampling; systemic error
  • judgment; bias
  • random sampling; bias
  • stratified sampling; systemic error

Question 5. Question : (TCO 11) If the variation in the process is due to common causes alone, the process is said to be

  • out of control.
  • in statistical control.
  • in precontrol.
  • out of capability.

Question 6. Question : (TCO 12) _____ are special types of data collection forms in which the results can be interpreted on the form directly without additional processing.

  • Check sheets
  • Run charts
  • Data sheets
  • Control charts

Question 7. Question : (TCO 12) The Pareto diagram was named after whom?

  • Juran
  • An Italian economist
  • Imai
  • Kano

Question 8. Question : (TCO 12) Attribute data are

  • discrete.
  • not measurable.
  • nonrandom.
  • continuous.

Question 9. Question : (TCO 12) An alternative to using the R-chart is the

  • NP-chart.
  • S-chart.
  • C-chart.
  • P-chart.

Question 10. Question : (TCO 12) Process capability calculations make little sense if the process

  • data were taken over a period of time.
  • is not in statistical control.
  • variations are due to common causes.
  • is not initiated.
  1. Question : (TCO 12)Six samples of subgroup size 7 (n = 7) were collected. Determine the upper control limit (UCL) for an X-bar chart if the mean of the sample averages is 4.7 and the mean of the sample ranges is 0.35.

Factors for calculating control limits

n          A2        D3       D4

2          1.880   0          3.267

3          1.023   0          2.574

4          0.729   0          2.282

5          0.577   0          2.114

6          0.483   0          2.004

7          0.419   0          1.924

Question 2. Question : (TCO 12) Twenty samples of subgroup size 2 (n = 2) were collected for a variable measurement. Determine the upper control limit (UCL) for an R-chart if the mean of the sample ranges equals 4.4.

Factors for calculating control limits

n          A2                    D3                   D4

2          1.880               0                      3.267

3          1.023               0                      2.574

4          0.729               0                      2.282

5          0.577               0                      2.114

6          0.483               0                      2.004