Six Sigma LSSMBB Online Practice Questions and Exam Preparation

Six Sigma LSSMBB Online Questions & Answers

• Question 1:

  The validity of the decision made with Hypothesis Testing is dependent upon all of the following except ______________________.

  A. Beta risk
  B. Range of data
  C. Alpha risk
  D. Sample size
  B. Range of data

• Question 2:

  If the production is for higher volume and monitoring and the Mean and variability is to be monitored for four machines producing product and the characteristic to be monitored is Variable Data, which SPC Chart is best to be selected?

  A. Xbar-R Chart
  B. Individual-MR Chart
  C. NP Chart
  D. CUSUM Chart
  A. Xbar-R Chart

• Question 3:

  Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperature exceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots per day were sold with a Standard Deviation of 0.7 pots. For the sales accomplished above, what test would validate if they met their requirements?

  A. F Test
  B. Test for Equal Variance
  C. Chi Square Test
  D. One-Sample t-Test
  D. One-Sample t-Test

• Question 4:

  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 5:

  Relative to a Design of Experiments the term ________________ refers to variables being a linear combination of each other.

  A. Mirror Image
  B. Directly Parallel
  C. Collinear
  D. None of the above
  C. Collinear

• Question 6:

  One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X's) and is commonly shown as which formula?

  A. Y = Z(X2)
  B. Y = f(X3)
  C. Y = f(Xn)
  D. Y = g(X+ 1.5)
  C. Y = f(Xn)

• Question 7:

  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
  A. It is unknown from this graph how many factors were in the Experimental Design
  C. The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

• Question 8:

  Using this data calculate the percentage of DPU.

  A. 2.74
  B. 3.23
  C. 4.56
  D. 5.93
  B. 3.23

• Question 9:

  SPC Charts are used extensively in different business and decision-making environments. In this example a vendor is being selected based on speed of delivery. Which of the conclusions would help you pick a vendor for your needs regarding lead-time of delivery from your vendors? (Note: There are 4 correct answers).

  

  A. Vendor A with a much shorter lead time in delivery
  B. Vendor B as it has a better consistency (lower variance) on lead time
  C. Vendor B since Vendor A shows a situation out of control as shown in red
  D. Vendor B since the Control Limits are much narrower than Vendor A
  E. Vendor B has higher lead time, but a process with much narrower Control Limits
  B. Vendor B as it has a better consistency (lower variance) on lead time
  C. Vendor B since Vendor A shows a situation out of control as shown in red
  D. Vendor B since the Control Limits are much narrower than Vendor A
  E. Vendor B has higher lead time, but a process with much narrower Control Limits

• Question 10:

  Accuracy can be assessed in several ways and a fairly accurate means of measurement is visual comparison.

  A. True
  B. False
  B. False