IHI QI:104 Final Exam Questions with
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1) Which of the following traits do histograms, Pareto charts, and scatter plots have
in common?
a) They are all bar charts.
b) They are all visual tools to display data.
c) They all show change over time.
d) All of the above. - ANSWER ✓ b) They are all visual tools to display data.
Which of the following is a problem with static data? - ANSWER ✓ It doesn't
adequately portray variation.
What is the minimum number of data points you should usually have to look for
signs of improvement on a run chart? - ANSWER ✓ 10
Which of the following is the best interpretation of the run chart below based on
Rule 3? Hint: There are 24 data points, and two of them fall directly on the median.
- ANSWER ✓ There are too few runs for the pattern to appear random.
Once again, here's the run chart of ED "walk aways" over time from the previous
lesson; practice applying the four run chart rules. Which of the following do you
see? (Note that there is one data point on the median, which is February 7.) -
ANSWER ✓ At least one shift (based on Rule 1)
The baseline median depicts the percent of walkaways prior to March 7, when the
improvement project began. Does the data suggest the team's changes led to
improvement? - ANSWER ✓ Yes, This pattern strongly supports the contention
that the changes the team made led to improvement.
According to the chart, when did a PDSA cycle occur? - ANSWER ✓ March 05
, How many useful observations are on this chart? (Note that one data point is on
the median.) - ANSWER ✓ 36
According to Rule 3, does the chart show non-random patterns? Use the the table
below to help you. (Note that one data point is on the median.) - ANSWER ✓ Yes,
there are too few runs.
Which of the following options indicates a non-random pattern? - ANSWER ✓ A
run of six points or more OR an astronomical point
How many runs are there on the chart? (Note that one data point is on the median.)
- ANSWER ✓ 12
Which of the following statements about astronomical data points is true? -
ANSWER ✓ They signal a non-random pattern
The team from the example on the previous page has started to draw a histogram
for its 32 data points: How high (i.e., to what numbers on the vertical axis) should
the team draw the bars in the remaining three categories? - ANSWER ✓ 4, 3, 2
An operating room (OR) team identified eight categories of factors that
contributed to errors during surgical setup. They tracked and calculated the
following data in relation to those categories: Can you calculate the missing data
point for the table above? (Hint: Start by adding the three largest values in the
'frequency' column. Then divide that number by the 'total frequency.') - ANSWER
✓ 75
Which of the following charts would be best to justify focusing on a few large
problems and ignoring many smaller ones? - ANSWER ✓ Pareto chart
Which of the following BEST describes the purpose of a histogram? - ANSWER
✓ To show distribution of continuous data
What famous Italian economist is credited with the theory behind the 80/20 rule? -
ANSWER ✓ Vilfredo Pareto
Which of the following traits do histograms, Pareto charts, and scatter plots have
in common? - ANSWER ✓ They are all visual displays of data
Elaborated Correct
Solutions||Already Graded!!100%
Guaranteed Pass!!!<<LATEST
VERSION>>
1) Which of the following traits do histograms, Pareto charts, and scatter plots have
in common?
a) They are all bar charts.
b) They are all visual tools to display data.
c) They all show change over time.
d) All of the above. - ANSWER ✓ b) They are all visual tools to display data.
Which of the following is a problem with static data? - ANSWER ✓ It doesn't
adequately portray variation.
What is the minimum number of data points you should usually have to look for
signs of improvement on a run chart? - ANSWER ✓ 10
Which of the following is the best interpretation of the run chart below based on
Rule 3? Hint: There are 24 data points, and two of them fall directly on the median.
- ANSWER ✓ There are too few runs for the pattern to appear random.
Once again, here's the run chart of ED "walk aways" over time from the previous
lesson; practice applying the four run chart rules. Which of the following do you
see? (Note that there is one data point on the median, which is February 7.) -
ANSWER ✓ At least one shift (based on Rule 1)
The baseline median depicts the percent of walkaways prior to March 7, when the
improvement project began. Does the data suggest the team's changes led to
improvement? - ANSWER ✓ Yes, This pattern strongly supports the contention
that the changes the team made led to improvement.
According to the chart, when did a PDSA cycle occur? - ANSWER ✓ March 05
, How many useful observations are on this chart? (Note that one data point is on
the median.) - ANSWER ✓ 36
According to Rule 3, does the chart show non-random patterns? Use the the table
below to help you. (Note that one data point is on the median.) - ANSWER ✓ Yes,
there are too few runs.
Which of the following options indicates a non-random pattern? - ANSWER ✓ A
run of six points or more OR an astronomical point
How many runs are there on the chart? (Note that one data point is on the median.)
- ANSWER ✓ 12
Which of the following statements about astronomical data points is true? -
ANSWER ✓ They signal a non-random pattern
The team from the example on the previous page has started to draw a histogram
for its 32 data points: How high (i.e., to what numbers on the vertical axis) should
the team draw the bars in the remaining three categories? - ANSWER ✓ 4, 3, 2
An operating room (OR) team identified eight categories of factors that
contributed to errors during surgical setup. They tracked and calculated the
following data in relation to those categories: Can you calculate the missing data
point for the table above? (Hint: Start by adding the three largest values in the
'frequency' column. Then divide that number by the 'total frequency.') - ANSWER
✓ 75
Which of the following charts would be best to justify focusing on a few large
problems and ignoring many smaller ones? - ANSWER ✓ Pareto chart
Which of the following BEST describes the purpose of a histogram? - ANSWER
✓ To show distribution of continuous data
What famous Italian economist is credited with the theory behind the 80/20 rule? -
ANSWER ✓ Vilfredo Pareto
Which of the following traits do histograms, Pareto charts, and scatter plots have
in common? - ANSWER ✓ They are all visual displays of data
