Question 1

Beginning the vertical scale of a graph at a value different from zero can cause increases to look more dramatic.

Accepted Answer

A) True 
 B)False

Question 2

Consider the following data.
$\begin{array}{llllllll}
\text { 1. } & 11.5 & 6 . & 13.7 & 11 . & 11.0 & 16 . & 14.5 \
\text { 2. } & 13.5 & 7 . & 14.0 & 12 . & 13.0 & 17 . & 15.5 \
\text { 3. } & 12.5 & 8 . & 12.0 & 13 . & 16.7 & 18 . & 13.0 \
\text { 4. } & 15.2 & 9 . & 12.7 & 14 . & 12.5 & 19 . & 18.2 \
\text { 5. } & 14.7 & 10 . & 12.5 & 15 . & 11.5 & 20 . & 11.7
\end{array}$ 
Create a stem-and-leaf display for the sample.

Accepted Answer

Stem-and-leaf of C1,N = 20,Leaf Unit =

Question 3

A flaw possessed by a population or sample unit is ___________.

Accepted Answer

A) Always random 
B) A defect 
C) Displayed by a dot plot 
D) The cause for extreme skewness to the right 
A) Always random 
B) A defect 
C) Displayed by a dot plot 
D) The cause for extreme skewness to the right

Question 4

A company collected the ages from a random sample of its middle managers,with the resulting frequency distribution shown below. $\begin{array} { l r } 
\text { Class Interval } & \text { Frequency } \
20 \text { to } < 25 & 8 \
25 \text { to } < 30 & 6 \
30 \text { to } < 35 & 5 \
35 \text { to } < 40 & 12 \
40 \text { to } < 45 & 15 \
45 \text { to } < 50 & 7
\end{array}$
What would be the approximate shape of the relative frequency histogram?

Accepted Answer

A) Symmetrical 
B) Uniform 
C) Multiple peaks 
D) Skewed to the left 
E) Skewed to the right 
A) Symmetrical 
B) Uniform 
C) Multiple peaks 
D) Skewed to the left 
E) Skewed to the right

Question 5

Consider the following data on distances traveled by people to visit the local amusement park.

Accepted Answer

Construct an ogive plot that corresponds

Question 6

The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below.
24,56,43,35,37,27,29,44,34,28,33,28,46,31,38,41,48,38,27,29,37,33,31,40,50
Construct an ogive plot.

Accepted Answer

@#IMG-DLM& Feedback:Create a frequency table with

Question 7

The number of items rejected daily by a manufacturer because of defects for the last 30 days are:
20,21,8,17,22,19,18,19,14,17,11,6,21,25,4,19,9,12,16,16,10,28,24,6,21,20,25,5,17,8
Construct an ogive plot.

Accepted Answer

@#IMG-DLM& Feedback:Construct a frequency table (5

Question 8

Stem-and-leaf displays and dot plots are useful for detecting outliers.

Accepted Answer

A) True 
 B)False

Question 9

Math test anxiety can be found throughout the general population.A study of 116 seniors at a local high school was conducted.The following table was produced from the data.Complete the missing parts.

Accepted Answer

Feedback:Work each row to generate the m

Question 10

The sample cumulative distribution function is nondecreasing.

Accepted Answer

A) True 
 B)False

Question 11

A CFO is looking at how much of a company's resources are spent on computing.He samples companies in the pharmaceutical industry and develops the following stem-and-leaf graph. $\begin{array} { l l } 
5 & 269 \
6 & 255568999 \
7 & 11224557789 \
8 & 001222458 \
9 & 02455679 \
10 & 1556 \
11 & 137 \
12 & \
13 & 255
\end{array}$
If you were creating a frequency histogram using these data,how many classes would you create?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 12

When grouping a large sample of measurements into classes,the ______________ is a better tool than the ___________.

Accepted Answer

A) Histogram,stem-and-leaf display 
B) Box plot,histogram 
C) Stem-and-leaf display,scatter plot 
D) Scatter plot,box plot 
A) Histogram,stem-and-leaf display 
B) Box plot,histogram 
C) Stem-and-leaf display,scatter plot 
D) Scatter plot,box plot

Question 13

A runs plot is a form of scatter plot.

Accepted Answer

A) True 
 B)False

Question 14

A CFO is looking at how much of a company's resources are spent on computing.He samples companies in the pharmaceutical industry and develops the following stem-and-leaf graph. $\begin{array} { l l } 
5 & 269 \
6 & 255568999 \
7 & 11224557789 \
8 & 001222458 \
9 & 02455679 \
10 & 1556 \
11 & 137 \
12 & \
13 & 255
\end{array}$
What would be the first class interval for the frequency histogram?

Accepted Answer

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 
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

Question 15

A plot of the values of two variables is a _____ plot.

Accepted Answer

A) Runs 
B) Scatter 
C) Dot 
D) Ogive 
A) Runs 
B) Scatter 
C) Dot 
D) Ogive

Question 16

The US local airport keeps track of the percentage of flights arriving within 15 minutes of their scheduled arrivals.The stem-and-leaf plot of the data for one year is below. $\begin{array} { l l } 
76 & 9 \
77 & 114 \
78 & \
79 & 07 \
80 & 88 \
81 & 2 \
82 & 1 \
83 & 88
\end{array}$
In developing a histogram of these data,how many classes would be used?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 17

As a general rule,when creating a stem-and-leaf display,there should be ______ stem values.

Accepted Answer

A) Between 3 and 10 
B) Between 1 and 100 
C) No fewer than 20 
D) Between 5 and 20 
A) Between 3 and 10 
B) Between 1 and 100 
C) No fewer than 20 
D) Between 5 and 20

Question 18

If there are 120 values in a data set,how many classes should be created for a frequency histogram?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
E) 8 
A) 4 
B) 5 
C) 6 
D) 7 
E) 8

Question 19

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results.

Accepted Answer

Feedback:Column percentages ca

Question 20

Using the following data,what would be the range of the values of the stem in a stem-and-leaf display? $\begin{array}{llllllll}
\text { 1. } & 11.5 & 6 . & 13.7 & 11 . & 11.0 & 16 . & 14.5 \
\text { 2. } & 13.5 & 7 . & 14.0 & 12 . & 13.0 & 17 . & 15.5 \
\text { 3. } & 12.5 & 8 . & 12.0 & 13 . & 16.7 & 18 . & 13.0 \
\text { 4. } & 15.2 & 9 . & 12.7 & 14 . & 12.5 & 19 . & 18.2 \
\text { 5. } & 14.7 & 10 . & 12.5 & 15 . & 11.5 & 20 . & 11.7
\end{array}$

Accepted Answer

A) 11-17 
B) 11-18 
C) 10-18 
D) 12-17 
E) 12-18 
A) 11-17 
B) 11-18 
C) 10-18 
D) 12-17 
E) 12-18

Beginning the vertical scale of a graph at a value different from zero can cause increases to look more dramatic.

Consider the following data. 1. 11.5 6. 13.7 11. 11.0 16. 14.5 2. 13.5 7. 14.0 12. 13.0 17. 15.5 3. 12.5 8. 12.0 13. 16.7 18. 13.0 4. 15.2 9. 12.7 14. 12.5 19. 18.2 5. 14.7 10. 12.5 15. 11.5 20. 11.7 Create a stem-and-leaf display for the sample.

A flaw possessed by a population or sample unit is ___________.

A company collected the ages from a random sample of its middle managers,with the resulting frequency distribution shown below. Class Interval Frequency 20 to <25 8 25 to <30 6 30 to <35 5 35 to <40 12 40 to <45 15 45 to <50 7 What would be the approximate shape of the relative frequency histogram?

Consider the following data on distances traveled by people to visit the local amusement park.

The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below. 24,56,43,35,37,27,29,44,34,28,33,28,46,31,38,41,48,38,27,29,37,33,31,40,50 Construct an ogive plot.

The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20,21,8,17,22,19,18,19,14,17,11,6,21,25,4,19,9,12,16,16,10,28,24,6,21,20,25,5,17,8 Construct an ogive plot.

Stem-and-leaf displays and dot plots are useful for detecting outliers.

Math test anxiety can be found throughout the general population.A study of 116 seniors at a local high school was conducted.The following table was produced from the data.Complete the missing parts.

The sample cumulative distribution function is nondecreasing.

When grouping a large sample of measurements into classes,the ____ is a better tool than the _.

A runs plot is a form of scatter plot.

A plot of the values of two variables is a _____ plot.

The US local airport keeps track of the percentage of flights arriving within 15 minutes of their scheduled arrivals.The stem-and-leaf plot of the data for one year is below. 76 9 77 114 78 79 07 80 88 81 2 82 1 83 88 In developing a histogram of these data,how many classes would be used?

As a general rule,when creating a stem-and-leaf display,there should be ______ stem values.

If there are 120 values in a data set,how many classes should be created for a frequency histogram?

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results.

Using the following data,what would be the range of the values of the stem in a stem-and-leaf display? 1. 11.5 6. 13.7 11. 11.0 16. 14.5 2. 13.5 7. 14.0 12. 13.0 17. 15.5 3. 12.5 8. 12.0 13. 16.7 18. 13.0 4. 15.2 9. 12.7 14. 12.5 19. 18.2 5. 14.7 10. 12.5 15. 11.5 20. 11.7

An Introduction to Business Statistics

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Continuous Random Variables

Sampling and Sampling Distributions

Confidence Intervals

Hypothesis Testing

Comparing Two Means and Two Proportions

Filters

Exam 2: Descriptive Statistics: Tabular and Graphical Methods

Beginning the vertical scale of a graph at a value different from zero can cause increases to look more dramatic.

Consider the following data. 1. 11.5 6. 13.7 11. 11.0 16. 14.5 2. 13.5 7. 14.0 12. 13.0 17. 15.5 3. 12.5 8. 12.0 13. 16.7 18. 13.0 4. 15.2 9. 12.7 14. 12.5 19. 18.2 5. 14.7 10. 12.5 15. 11.5 20. 11.7 Create a stem-and-leaf display for the sample.

A flaw possessed by a population or sample unit is ___________.

A company collected the ages from a random sample of its middle managers,with the resulting frequency distribution shown below. Class Interval Frequency 20 to <25 8 25 to <30 6 30 to <35 5 35 to <40 12 40 to <45 15 45 to <50 7 What would be the approximate shape of the relative frequency histogram?

Consider the following data on distances traveled by people to visit the local amusement park.

The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below. 24,56,43,35,37,27,29,44,34,28,33,28,46,31,38,41,48,38,27,29,37,33,31,40,50 Construct an ogive plot.

The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20,21,8,17,22,19,18,19,14,17,11,6,21,25,4,19,9,12,16,16,10,28,24,6,21,20,25,5,17,8 Construct an ogive plot.

Stem-and-leaf displays and dot plots are useful for detecting outliers.

Math test anxiety can be found throughout the general population.A study of 116 seniors at a local high school was conducted.The following table was produced from the data.Complete the missing parts.

The sample cumulative distribution function is nondecreasing.

When grouping a large sample of measurements into classes,the ______________ is a better tool than the ___________.

A runs plot is a form of scatter plot.

A plot of the values of two variables is a _____ plot.

The US local airport keeps track of the percentage of flights arriving within 15 minutes of their scheduled arrivals.The stem-and-leaf plot of the data for one year is below. 76 9 77 114 78 79 07 80 88 81 2 82 1 83 88 In developing a histogram of these data,how many classes would be used?

As a general rule,when creating a stem-and-leaf display,there should be ______ stem values.

If there are 120 values in a data set,how many classes should be created for a frequency histogram?

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results.

Using the following data,what would be the range of the values of the stem in a stem-and-leaf display? 1. 11.5 6. 13.7 11. 11.0 16. 14.5 2. 13.5 7. 14.0 12. 13.0 17. 15.5 3. 12.5 8. 12.0 13. 16.7 18. 13.0 4. 15.2 9. 12.7 14. 12.5 19. 18.2 5. 14.7 10. 12.5 15. 11.5 20. 11.7

An Introduction to Business Statistics

Descriptive Statistics: Numerical Methods

Probability

Discrete Random Variables

Continuous Random Variables

Sampling and Sampling Distributions

Confidence Intervals

Hypothesis Testing

Comparing Two Means and Two Proportions

Filters

When grouping a large sample of measurements into classes,the ____ is a better tool than the _.