LSSBB Practice Test

LSSBB Practice Test practice questions, page 11 of 12, with answer review and explanations.

Question 51

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

  1. Extreme tails
  2. Outliers
  3. Multiple Modes
  4. All of the above

Question 52

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.

  1. If the average cost per component is $4,200 or less, then the purchase manager will introduce the new product upgrade with new components.
  2. If the average cost per component is greater than $4,200, then the purchase manager will introduce the new product upgrade with new components.
  3. Only if the average cost per product upgrade is $4,060, will the purchase manager introduce new product upgrades with new components.
  4. 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.

Question 53

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?

  1. The Standard Deviation is equal to $300.
  2. The Mean is less than $4,320.
  3. The Mean is equal to $4,060.
  4. The Mean is less than $4,200.
  5. The Mean is greater than $ 4,200.

Question 54

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?

  1. 1.11
  2. 2.22
  3. 4.30
  4. 5.42

Question 55

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?

  1. $6
  2. $12
  3. $24
  4. $48