Unformatted text preview: y of the data set.
B. Provide a point estimate of the central tendency of the data set.
C. Display the shape of the distribution.
D. None of the above. 132 Chapter 01  An Introduction to Business Statistics 19. When grouping a large sample of items into classes, the ______________ is a better tool
than the ___________.
A. Histogram, stem and leaf display
B. Box plot, histogram
C. Stem and Leaf display, scatter plot
D. Scatter plot, box plot 20. A ______________ displays the frequency of each group with qualitative data and a
_____________ displays the frequency of each group with quantitative data.
A. Histogram, stem and leaf display
B. Bar chart, histogram
C. Scatter plot, bar chart
D. Stem and leaf, pie chart 21. A ______________ shows the relationship between two variables.
A. Stemandleaf
B. Bar chart
C. Histogram
D. Scatter Plot
E. Pie chart 22. A ______________ can be used to differentiate the "vital few" causes of quality problems
from the "trivial many" causes of quality problems.
A. Histogram
B. Scatter plot
C. Pareto chart
D. Ogive plot
E. Stem and leaf display 133 Chapter 01  An Introduction to Business Statistics 23. ______________ and _____________ are used to describe qualitative (categorical) data.
A. Stem and leaf displays, scatter plots
B. Scatter plots, histograms
C. Box plots, bar charts
D. Bar charts, pie charts
E. Pie charts, histograms 24. Which one of the following statistical tools is used with quantitative data?
A. Bar chart
B. Histogram
C. Pie chart
D. Pareto chart 25. When developing a frequency distribution the class (group), intervals should be
A. large.
B. small.
C. integer.
D. mutually exclusive.
E. equal. 26. Which of the following graphical tools is not used to study the shapes of distributions?
A. StemandLeaf display
B. Scatter plot
C. Histogram
D. Dot plot 27. All of the following are used to describe qualitative data except the:
A. Bar chart
B. Pie chart
C. Histogram
D. Pareto Chart 134 Chapter 01  An Introduction to Business Statistics 28. If there are 130 values in a data set, how many classes should be created for a frequency
histogram?
A. 4
B. 5
C. 6
D. 7
E. 8 29. If there are 120 values in a data set, how many classes should be created for a frequency
histogram?
A. 4
B. 5
C. 6
D. 7
E. 8 30. If there are 62 values in a data set, how many classes should be created for a frequency
histogram?
A. 4
B. 5
C. 6
D. 7
E. 8 31. If there are 30 values in a data set, how many classes should be created for a frequency
histogram?
A. 4
B. 5
C. 6
D. 7
E. 8 135 Chapter 01  An Introduction to Business Statistics 32. A CFO is looking at how much of a company's resources are spent on computing. He
samples companies in the pharmaceutical industry and developed the following stemandleaf
graph. What is the approximate shape of the distribution of the data?
A. Normal
B. Skewed to the right
C. Skewed to the left
D. Bimodal
E. Uniform 33. A CFO is looking at how much of a company's resources are spent on computing. He
samples companies in the pharmaceutical industry and developed the following stemandleaf
graph. What is the smallest percent spent on R&D?
A. 5.9
B. 5.6
C. 5.2
D. 5.02
E. 50.2
136 Chapter 01  An Introduction to Business Statistics 34. A CFO is looking at how much of a company's resources are spent on computing. He
samples companies in the pharmaceutical industry and developed the following stemandleaf
graph. If a frequency histogram were to be created using these data, how many classes would you
create?
A. 4
B. 5
C. 6
D. 7
E. 8 35. A CFO is looking at how much of a company's resources are spent on computing. He
samples companies in the pharmaceutical industry and developed the following stemandleaf
graph. What would be the class length that would be used in creating a frequency histogram?
A. 1.4
B. 8.3
C. 1.2
D. 1.7
E. 0.9 137 Chapter 01  An Introduction to Business Statistics 36. A CFO is looking at how much of a company's resources are spent on computing. He
samples companies in the pharmaceutical industry and developed the following stemandleaf
graph. What would be the first class interval for the frequency histogram?
A. 5.2  6.5
B. 5.2  6.0
C. 5.0  6.0
D. 5.2  6.6
E. 5.2  6.4 37. The US local airport keeps track of the percentage of flights arriving within 15 minutes of
their scheduled arrivals. The stemandleaf plot of the data for one year is below: How many flights were used in this plot?
A. 7
B. 9
C. 10
D. 11
E. 12 138 Chapter 01  An Introduction to Business Statistics 38. The US local airport keeps track of the percentage of flights arriving within 15 minutes of
their scheduled arrivals. The stemandleaf plot of the data for one year is below: In developing a histogram of these data, how many classes would be used?
A. 4
B. 5
C. 6
D. 7
E. 8 39. The US local airport keeps track of the percentage of flights arriving within 15 minutes of
their scheduled arrivals. The stemandleaf plot of the data for one year is below: What would be the class length for creating the frequency...
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 Winter '14

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