Six Sigma CLSSBB Online Practice Questions and Exam Preparation

Six Sigma CLSSBB Online Questions & Answers

• Question 271:

  A(n) ______________ is best used to compare a Machine 1 average quality characteristic to the same quality characteristic of Machine 2.

  A. 1-Sample t-test
  B. 2-Sample t-test
  C. F test
  D. ANOVA test
  B. 2-Sample t-test

• Question 272:

  A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt's effort requiring that the average cost of an internal critical raw material component be less than or equal to $3,800 in order to stay within budget. Using a sample of 38 first article components, a Mean of the new product upgrade price of $3,680, and a Standard Deviation of $120 was estimated. In order to increase the Long Term Z value to 5, what is the maximum long term variation in pricing the Belt can accept for his upgraded critical raw material component?

  A. $6
  B. $12
  C. $24
  D. $48
  C. $24

• Question 273:

  When variation is removed from the output of a process then the process customer can have more confidence in the experience that results from the process.

  A. True
  B. False
  A. True

• Question 274:

  On a _________________ Belt screens variables, or various inputs, to analyze their relative impact on the output of concern.

  A. X-Y Matrix
  B. Weighted Scale
  C. Multi-Vari Chart
  D. Poisson Chart
  C. Multi-Vari Chart

• Question 275:

  Which of the following describes the 95% confidence interval of a 20% absentee rate in a department with 30 people?

  A. 6% to 34%
  B. 8% to 32%
  C. 13% to 27%
  D. 17% to 23%
  A. 6% to 34%

• Question 276:

  The diameters of 50 randomly selected shafts have a mean of 1.525 and standard deviation of 0.006. Find the 95% lower confidence limit for the population mean.

  A. 1.523
  B. 1.524
  C. 1.525
  D. 1.526
  E. 1.527
  A. 1.523

  ---

  Explanation/Reference:

  n = 50 mean = 1.525 Standard deviation = 0.006 95% confidence interval = 1.96

  

  -z/2 /n 1.525-1.96(0.006/50) 1.525-0.00166=1.523

• Question 277:

  When the design for assembly is being evaluated, all of the following factors should be considered EXCEPT design for:

  A. manufacturability
  B. cost
  C. simplicity
  D. cycle time
  D. cycle time

• Question 278:

  Of the various types of data shown which is NOT representative of Variable Data.

  A. Child's height is 4 foot 3 inches
  B. Three employees wore hard hats
  C. Car burned 2.7 gallons of gasoline
  D. Train was going 140 kilometers per hour
  B. Three employees wore hard hats

• Question 279:

  An operator is measuring the distance between two points. Which is most likely to be influenced by the operator?

  A. Precision of the measurement
  B. Accuracy of the measurement
  C. Calibration of the instrument
  D. All of these answers are correct
  D. All of these answers are correct

• Question 280:

  Which statement(s) are correct about the Regression shown here? (Note: There are 2 correct answers).

  

  A. The dependent variable is the outside temperature
  B. The relationship between outside temperature and number of customers per hour is a Linear Regression
  C. The dashed lines indicate with 95% confidence where all of the process data should fall between
  D. The dashed lines indicate with 95% confidence the estimate for the Quadratic Regression Line
  E. The predicted number of customers per hour is close to 5 if the outside temperature is 10 deg C
  D. The dashed lines indicate with 95% confidence the estimate for the Quadratic Regression Line
  E. The predicted number of customers per hour is close to 5 if the outside temperature is 10 deg C