Six Sigma Six Sigma Certifications LSSMBB Questions & Answers

• Question 111:

  Sally and Sara sell flower pots at their garage sale. Martha motivates Rose mentioning that they will sell a minimum of 16 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 15.2 pots per day were sold with a Standard Deviation of 0.6 pots. What is the Z value for this sales process?

  A. 0.67

  B. 1.13

  C. 1.33

  D. 2.66

  Correct Answer: C

• Question 112:

  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. The statistical Degrees of Freedom for this example are?

  A. 1

  B. 29

  C. 30

  D. 31

  E. 2

  Correct Answer: B

• Question 113:

  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

  Correct Answer: C

• Question 114:

  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

  Correct Answer: D

• Question 115:

  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 $3,600 in order to stay within budget. Using a sample of 42 first article components, a Mean of the new product upgrade price of $3,200 and a Standard Deviation of $180 was estimated. Based on the data provided, the Z value for the data assuming a Normal Distribution is?

  A. 1.11

  B. 2.22

  C. 4.30

  D. 5.42

  Correct Answer: B

• Question 116:

  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 $4,200 in order to stay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 was estimated. The Alternative Hypothesis in the above example is?

  A. The Standard Deviation is equal to $300.

  B. The Mean is less than $4,320.

  C. The Mean is equal to $4,060.

  D. The Mean is less than $4,200.

  E. The Mean is greater than $ 4,200.

  Correct Answer: E

• Question 117:

  Which of these might contribute to similar distributions having Unequal Variance?

  A. Extreme tails

  B. Outliers

  C. Multiple Modes

  D. All of the above

  Correct Answer: D

• Question 118:

  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 $4,200 in order to stay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 was estimated. Select the answer that best states the Practical Problem.

  A. If the average cost per component is $4,200 or less, then the purchase manager will introduce the new product upgrade with new components.

  B. If the average cost per component is greater than $4,200, then the purchase manager will introduce the new product upgrade with new components.

  C. Only if the average cost per product upgrade is $4,060, will the purchase manager introduce new product upgrades with new components.

  D. If the average cost per new product upgrade is less than $180, then the purchase manager will introduce the new product upgrade with new components.

  Correct Answer: C

• Question 119:

  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

  Correct Answer: DE

• Question 120:

  Which statement(s) are most correct for the Regression Analysis shown here?

  

  A. The Regression explains 50.8% of the process variation

  B. The air-fuel ratio explains most of the TurbineOutput variation

  C. This Simple Linear Regression explains 98+% of the process variation

  D. This Multiple Linear Regression has four statistically significant independent variables

  Correct Answer: B