IASSC IASSC Certifications ICBB Questions & Answers

• Question 331:

  Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).

  

  A. It is unknown from this graph how many factors were in the Experimental Design

  B. The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06

  C. The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

  D. The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD

  Correct Answer: AC

• Question 332:

  If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement(s) are correct? (Note: There are 3 correct answers).

  A. The Main Effects for the 5 factors are not aliased or confounded but the 2-way interactions are confounded with the 3-way interactions

  B. The Main Effects are confounded with only 4-way interactions

  C. The Experimental Design is half-fractional

  D. The experiment has 8 experimental runs with the first factor at the high level

  E. The experiment has only 4 experimental runs with the 5th factor at the high level

  Correct Answer: BCD

• Question 333:

  How many experimental runs exist in a Full Factorial and fully randomized design for 5 factors with 2 replicates for the Corner Points and no Center Points? The factors in the experiment are only at 2- levels.

  A. 10

  B. 128

  C. 256

  D. 64

  Correct Answer: D

• Question 334:

  Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for the process?

  A. Xbar Chart

  B. Time Series Chart

  C. Neither

  D. Both

  Correct Answer: A

• Question 335:

  A ___________ is used primarily to track the stability of the average value of a metric of interest.

  A. NP Chart

  B. Xbar-R Chart

  C. I-MR Chart

  D. C Chart

  Correct Answer: B

• Question 336:

  For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a ___________ to display the data?

  A. Individual Chart

  B. C Chart

  C. Xbar Chart

  D. P Chart

  Correct Answer: D

• Question 337:

  The class score distribution of schools in a metropolitan area is shown here along with an analysis output.

  Comment on the statistical significance between the Means of the two distributions. Select the most appropriate statement.

  A. The two class Means are statistically different from each other

  B. The two class Means statistically not different from each other

  C. Inadequate information on class Means to make any statistical conclusions

  D. A visual comparison shows that class Means are not statistically different

  E. A visual comparison shows that class Means are statistically different

  Correct Answer: A

• Question 338:

  A statistical test or Hypothesis Test is performed to reject or fail to reject a stated hypothesis and it converts the Practical Problem into a Statistical Problem.

  A. True

  B. False

  Correct Answer: A

• Question 339:

  Following process modifications, the Null Hypothesis states that no improvement to the process has occurred. If we discover the Null Hypothesis Test was rejected when it was false that would be a(n) ________________________.

  A. Alpha Error

  B. Type I Error

  C. Type II Error

  D. Type III Error

  Correct Answer: C

• Question 340:

  The Normal Distribution is considered to be the most important distribution in statistics and, among other things is defined as having a total area under the curve of 1, is mounded and symmetrical and the Mean, Median and Mode are _____________.

  A. All evenly divisible by 3

  B. Twice the Standard Deviation

  C. Within 10% of each other

  D. The same number

  Correct Answer: D