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LSSGB Week 5: Questions And Correct Solutions
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LSSGB Week 5: Questions And Correct Solutions
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LSSGB Week 5: Questions And Correct SolutionsWhich of the following are measures used to describe the center of the data
set?
a) median
b) mean
c) mode
d) all of the above Right Ans - d) all of the above
For symmetric data, which of the following is true?
a) mode>mean>median
b) mode<mean<median
c) mode=mean=median
d) none of the above Right Ans - c) mode=mean=median
Inferential statistics are used to determine___________
a) conclusions that extend beyond existing data
b) exact cause-and-effect relationships
c) judgements about what employees are doing in the process
d) all of the above Right Ans - a) conclusions that extend beyond existing
data
Standard deviation can be used to describe the variation of normal and non-
normal data.
True
False Right Ans - True
When you are unable to measure the entire population, you typically take a
sample to represent the population.
True
False Right Ans - True
High standard deviation represents a tightly controlled process.
True
False Right Ans - False
_________ are used to display descriptive statistics.
, a) Histograms
b) Run charts
c) Both a and b
d) None of the above Right Ans - c) Both a and b
The Analyze Phase of the DMAIC Six Sigma project can include ___________
a) statistical analysis
b) graphical analysis
c) both a and b
d) neither Right Ans - c) both a and b
In a statistical study, population refers to the entire set of objects, individuals,
or measurement items defined by the scope of the study that exhibits a
particular characteristic.
True
False Right Ans - True
What is the range of this data set: 3,4,5,6,7
a) 2
b) 4
c) 3
d) 1 Right Ans - b) 4
The smaller, the standard deviation, the more robust the process.
True
False Right Ans - True
The mode is the most frequently occurring the value of a data set.
True
False Right Ans - True
After randomly selected samples from a population are measured, the
resulting data are analyzed to produce descriptive statistics.
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