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Six Sigma Course Practice Test Q&As 20

Question: The primary transformation function provided by Mercy Hospital can best be described as:
  physical
  location
  storage
  physiological
  informational

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physiological

Question: To capture the Voice of the Customer (VOC), it is important to collect data from a large, representative sample of the target customer base. To collect this data, Six Sigma practitioners can use:
  census data
  case studies
  government records
  surveys and questionnaires

Show or Reveal the Answer

surveys and questionnaires

Explanation : Surveys and questionnaires can be used to collect data about a target customer base.

Data collection is important in gaining information about an organization’s target customer base. To capture the voice of their customers, business professionals can use surveys and questionnaires to gather information about their attitudes, preferences, demographics, and purchasing habits. The goal of using surveys and questionnaires is to gather objective and up-to-date information about customer requirements.

Question: Richard is promised an amount equal to $10,000 in two years if he keeps his investment with his family’s restaurant. He is offered an annual interest rate of 5%. What is the Net Present Value (NPV) of Richard’s investment?
  $9,090
  $3,070
  $9,070
  $7,090

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$9,070

Explanation : The NPV of Richard’s investment is $9,070.

To calculate the NPV of an investment with a known return date and known interest rates over a period of time, the following formula is used: P = A (1 + i)-n. An NPV provides an estimate of how much money is needed to invest currently in order to gain a set amount in the future.

Question: Pharmaceutical companies are often accused of hiding experimental results that do not support their stated marketing campaigns. In ethical terms, what is this practice called?
  “data analysis”
  “data scrubbing”
  “data cleansing”
  “data boosting”

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“data cleansing”

Explanation : Data cleansing is an unethical practice in research methodology whereby researchers hide experimental results that do not support their desired hypothesis.

When conducting research, ethical considerations dictate that all results of the research are presented. Sometimes, data cleansing is done for the purpose of hiding results that do not support the desired hypothesis of the researchers. This dishonest practice has serious and dangerous implications, especially where safety is concerned.

Question: A Black Belt practitioner is hired by a construction company to oversee a large renovation project. The practitioner seeks to determine cost of quality by adding the costs of the following EXCEPT:
  promotion costs
  appraisal costs
  internal failure costs
  prevention costs

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promotion costs

Explanation : Promotion costs are not part of the cost of quality calculations.

Cost of quality calculations are done to justify the cost of improvement measures. Cost of quality components include appraisal costs, prevention costs, internal failure costs and external failure costs.

Question: Which quality management professional is referred to as the father of statistical quality control (SQC)?
  Joseph Juran
  W. Edwards Deming
  Walter Shewhart
  Philip Crosby

Show or Reveal the Answer

Walter Shewhart

Explanation : Walter Shewhart is referred to as the father of statistical quality control (SQC).

Walter Shewhart is credited with the advancement of statistical quality control in processes. He worked at the Hawthorne plant of Western Electric and is said to have combined the disciplines of statistics, engineering and economics in order to advance quality control through rigorous methodologies.

Question: Root Cause Analysis (RCA) is considered to be a ______________ type of accident analysis.

  Proactive
  Probative
  Reactive
  Reflective

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Reactive

Explanation : Root Cause Analysis is considered to be a reactive type of accident analysis.

RCA serves to uncover the root causes of accidents and problems. Since the analysis is conducted after the accident occurs, RCA is considered to be a reactive type of accident analysis. However, many workplace accident and safety managers use information gained from RCA to predict the likelihood of accidents occurring in the future and to prevent or contain their damage.

Question: In enterprises, Black Belts work full-time on projects using Six Sigma tools and methodologies. Some business executives believe that Black Belts should constitute ________ of an organization’s employees.
  0.1%
  1%
  0.001%
  0.01%

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1%

Explanation : Some business executives believe that Black Belts should constitute 1% of an organization’s employees.

Within the Six Sigma practitioner classes, Black Belts work full-time on projects. These practitioners are tasked with prioritizing the projects according to their financial and operational impacts on the enterprise. Among the important qualities of Black Belts is the use of statistical analysis tools as well as the ability to lead multidisciplinary teams.

Question: A business system is:
  used by executives to cut costs and increase profits
  developed by engineers and other technical professionals alone
  designed to implement a set of processes
  implemented to encourage change management

Show or Reveal the Answer

designed to implement a set of processes

Explanation : A business system is designed to implement a set of processes.

Business systems are designed to monitor and implement a set of processes that lead to products or services. The function of a business system is to ensure that process inputs are correctly and sufficient resources are available for each process. Business systems are also responsible for gathering data and information about process efficiency.

Question: Affinity diagrams allow team leaders to present and display a number of possible answers to open-ended questions. If a team leader wishes to reduce the cycle time of one aspect of production, the following would be possible answers EXCEPT:
  run more machines
  shorten set-up time
  use fewer staff members
  implement a more efficient control system

Show or Reveal the Answer

use fewer staff members

Explanation : Using fewer staff members is not a possible answer to reduce the cycle time of production.

Affinity diagrams provide a visual display of possible answers to a team’s open-ended questions. One way of using affinity diagrams is to pose the question and then encourage team members to come up with solutions by writing them on pieces of papers and then affixing under the question. The team can then prioritize the solutions in terms of feasibility and potential impact on the problem or question posed.

Question: Brett is a Black Belt practitioner who is leading a change management project in his organization. What is a common error committed during such a project?
  giving incomplete or inadequate information about coming changes
  providing clear functions to members whose jobs will change
  establishing short-term and long-term goals and metrics
  making sure that adequate resources are available to help with the transition

Show or Reveal the Answer

giving incomplete or inadequate information about coming changes

Explanation : - Giving incomplete or inadequate information about coming changes is a common error during change management.

Change management is a time of unsettlement for employees as roles and responsibilities shift. A Black Belt practitioner responsible for leading team members during the change must give complete and adequate information about coming changes. This includes information about new roles and responsibilities and whether appropriate resources will be provided.

Question: When a team needs a number of fresh and innovative ideas, _________ techniques are used.
  solicitation
  diversion
  conversion
  regression

Show or Reveal the Answer

conversion

Explanation : - When a team needs a number of fresh and innovative ideas, conversion techniques are used. Conversion techniques are team management tools that a Black Belt practitioner can use to encourage new and innovative ideas from team members. Brainstorming and cause-and-effect techniques are types of conversion techniques that can be used to encourage these ideas. A team leader who does not use conversion techniques risks a narrowing of focus when dealing with problems and may lack ideas to solve them.

Question: Three samples (1, 2, 3) are compared using ANOVA. The null hypothesis is stated as:
  H0: µ1 = µ2 = µ3
  H0: µ1 = µ2
  H1: µ1 = µ2 = µ3
  H0: µ2 = µ3

Show or Reveal the Answer

H0: µ1 = µ2 = µ3

Explanation : In ANOVA, the null hypothesis is stated as H0: µ1 = µ2 = µ3.

In ANOVA, the means of three samples are compared. The null hypothesis states that all population means are equal. Equal means indicate that there are no variations due to experimental factors.

Question: In an Interrelationship Digraph, a(an) _______ and ______ relationship between two variables is depicted visually.
  diversion; conversion
  internal; external
  cause; effect
  antecedent; precedent

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cause; effect

Explanation : In an Interrelationship Digraph, a cause and effect relationship between two variables is depicted visually. Interrelationship Digraphs are simple visual representations that show the cause and effect relationship between two or more variables. This type of representation is important in helping team members understand how different project variables interact with one another and their possible outcomes. For example, a delay in the processing of client complaints in customer service would affect technicians who are tasked with addressing these concerns.

Question: The following interrelationship diagram is best described by which statement:
A: Item (E) has a stronger influence over (A)
B: Item (A) has a stronger influence over (E)
C: Items (A) and (E) have an equal influence over each other
D: A double arrow is not allowed

Show or Reveal the Answer

A double arrow is not allowed

Question: Which of the following statements regarding interrelationship diagrams is FALSE?
A.) Arrows may flow in two directions
B.) An outgoing arrow indicates that it is a cause vs. an effect
C.) The Items with the most incoming arrows indicates a key outcome
D.) The Driver is typically double boxed to highlight it.

Show or Reveal the Answer


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