LSSMBB Online Practice Questions and Answers

An MSA study is generally performed during which of the DMAIC phases?

A. Define phase

B. Measure phase

C. Analyze phase

D. Control phase

If you have a gauge study with a % RandR of 25% what should you do?

A. Pull the tool from production.

B. This is fine-go ahead.

C. This is not acceptable for critical measurements, you should look into improvements in the measurement process.

D. This is only an issue if you fail calibration.

A black belt is reviewing a process, as shown below. The specification limits are 1200 +1— 200. Which of the following is the best statement?

A. Cpk < Cp

B. Cp < Cpk

C. Cpk = Cp

D. The process is on-target

Special Cause Variation falls into which two categories?

A. Natural and Unnatural

B. Short Term and Long Term

C. Assignable and Pattern

D. Attribute and Discreet

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

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

For the data set shown here which of these statements is/are true?

A. Hypothesis Testing of Means or Medians cannot be done since there are an unequal number of observations for the 3 samples

B. A Paired T-test would be applicable for comparing Grade B and Grade A since they follow each other in the data set

C. Grade A has the lowest sample Mean of the 3 samples

D. Grade A has a higher sample Mean than Grade B

Following the completion of a LSS project the Belt not only creates a Control Plan he also develops a _____________ so those involved in the process know what to do when the critical metrics move out of spec.

A. Response Plan

B. Call List

C. Chain-of-Command

D. Defect Analysis Plan

Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. All these items are Hidden Cost except __________________.

A. Lost Customer Loyalty

B. Returns

C. Time Value of Money

D. Late Delivery

When the Inputs, X's, for your process are Normally Distributed about the Mean, the Outputs, Y's, will be Normally Distributed.

A. True

B. False