Exam 1 -SQA UPDATED ACTUAL Exam Questions and
CORRECT Answers
The standard deviation does not reflect the magnitude of the sample data, only
__________________________________________________. - the scatter about the average
Observations in a sample are used to conclude about? - Population
The Random sample is selected so that the observations are dependent. - False
Every —----- has a probability distribution. - Statistic
What are the major hypotheses we have to test? - Null Hypotheses
And Alternative Hypotheses
A random sample of 500 connecting rod pins contains 40 nonconforming units, Estimate the
process fraction nonconforming: - Test the hypothesis that the true fraction defective in this test
is 0.08, Use alpha = 0.01
What is not one of the eight dimensions of quality? - Cost
What are the eight dimensions of quality? - Performance
Reliability
Durability
Serviceability
Aesthetics
Features
, Perceived quality
Conformance to standards
The definition of quality is inversely proportional to variability? - True
During which phase of the DMAIC process are statistical tools often employed to identify root
causes and potential solutions? - Analyze
The analyze step determines ..... relationships. - Cause and effect
What are the steps of DMAIC? - Define
Measure
Analyze
Improve
Control
DMAIC is usually associated with Six Sigma but can also be used with any business or process
improvement effort? - True
What's the key difference between continuous and discrete distributions? - Continuous
distributions have infinite possible values within a range, while discrete distributions have
specific, separate values.
When the variable being measured is expressed on a continuous scale, its probability distribution
is called a ...... - Continuous distribution.
What is probability distribution? - A mathematical model that relates the value of the variable
with the probability of occurrence of that value in the population.
CORRECT Answers
The standard deviation does not reflect the magnitude of the sample data, only
__________________________________________________. - the scatter about the average
Observations in a sample are used to conclude about? - Population
The Random sample is selected so that the observations are dependent. - False
Every —----- has a probability distribution. - Statistic
What are the major hypotheses we have to test? - Null Hypotheses
And Alternative Hypotheses
A random sample of 500 connecting rod pins contains 40 nonconforming units, Estimate the
process fraction nonconforming: - Test the hypothesis that the true fraction defective in this test
is 0.08, Use alpha = 0.01
What is not one of the eight dimensions of quality? - Cost
What are the eight dimensions of quality? - Performance
Reliability
Durability
Serviceability
Aesthetics
Features
, Perceived quality
Conformance to standards
The definition of quality is inversely proportional to variability? - True
During which phase of the DMAIC process are statistical tools often employed to identify root
causes and potential solutions? - Analyze
The analyze step determines ..... relationships. - Cause and effect
What are the steps of DMAIC? - Define
Measure
Analyze
Improve
Control
DMAIC is usually associated with Six Sigma but can also be used with any business or process
improvement effort? - True
What's the key difference between continuous and discrete distributions? - Continuous
distributions have infinite possible values within a range, while discrete distributions have
specific, separate values.
When the variable being measured is expressed on a continuous scale, its probability distribution
is called a ...... - Continuous distribution.
What is probability distribution? - A mathematical model that relates the value of the variable
with the probability of occurrence of that value in the population.
