Question 1

TABLE 2-13
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball.
 
-Referring to Table 2-13, if the sample is a good representation of the population, we can expect ________ percent of the males in the population will be against the plan.

Accepted Answer

The answer of TABLE 2-13
The table below contains the opinions...

Question 2

TABLE 2-18
The following table presents total retail sales in millions of dollars for the leading apparel companies during April 2008 and April 2009.
 
-Referring to Table 2-18, among the 8 stores, ________ saw a sales decline.

Accepted Answer

The answer of TABLE 2-18
The following table presents total retail...

Question 3

TABLE 2-8
The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in superior court.
  Note: 1L means the "low teens" - 10, 11, 12, 13, or 14; 1H means the "high teens" - 15, 16, 17, 18, or 19; 2L means the "low twenties" - 20, 21, 22, 23, or 24, etc.
-Referring to Table 2-8, the civil suit with the longest wait between when the suit was filed and when it was adjudicated had a wait of ________ months.

Accepted Answer

The answer of TABLE 2-8
The Stem-and-Leaf display below contains data...

Question 4

TABLE 2-14
Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a month by 25 drive-through car wash operations in Phoenix.
 
-Referring to Table 2-14, if a percentage histogram for the detergent data is constructed, using "9.0 but less than 10.0 gallons" as the first class, what percentage of drive-through car wash operations use less than 12 gallons of detergent in a month?

Accepted Answer

The answer of TABLE 2-14
Given below is the stem-and-leaf display...

Question 5

TABLE 2-11
The histogram below represents scores achieved by 200 job applicants on a personality profile.
 
-Referring to the histogram from Table 2-11, the number of job applicants who scored 50 or above is ________.

Accepted Answer

The answer of TABLE 2-11
The histogram below represents scores achieved...

Question 6

TABLE 2-13
The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball.
 
-Referring to Table 2-13, if the sample is a good representation of the population, we can expect ________ percent of the population will be for the plan.

Accepted Answer

The answer of TABLE 2-13
The table below contains the opinions...

Question 7

Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children's clothing should be manufactured and marketed in larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an example of

Accepted Answer

A)  a categorical random variable. 
B)  a discrete random variable. 
C)  a continuous random variable. 
D)  a parameter.

Question 8

When constructing a frequency distribution, classes should be selected in such a way that they are of equal width.

Accepted Answer

A) True 
 B)False

Question 9

You have collected data on the annual average amount of cash rebate offered by 6 different brands of automobiles sold in the US in 2006 and in 2007. Which of the following is the best for presenting the data?

Accepted Answer

A)  A contingency table. 
B)  A stem-and-leaf display. 
C)  A time-series plot. 
D)  A side-by-side bar chart.

Question 10

The date when a production line in a factory is out-of-control will be measured with a ratio scale.

Accepted Answer

A) True 
 B)False

Question 11

Marital status is an example of a numerical variable.

Accepted Answer

A) True 
 B)False

Question 12

A personal computer user survey was conducted. The number of computer magazine subscriptions is an example of a ________ numerical variable.

Accepted Answer

The answer of A personal computer user survey was conducted....

Question 13

TABLE 2-14
Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in 10ths of gallons) in a month by 25 drive-through car wash operations in Phoenix.
 
-Referring to Table 2-14, construct a cumulative percentage polygon for the detergent data if the corresponding frequency distribution uses "9.0 but less than 10.0" as the first class.

Accepted Answer

The answer of TABLE 2-14
Given below is the stem-and-leaf display...

Question 14

The original data values cannot be assessed once they are grouped into a frequency distribution table.

Accepted Answer

A) True 
 B)False

Question 15

Data on 1,500 students' height were collected at a larger university in the East Coast. Which of the following is the best chart for presenting the information?

Accepted Answer

A)  A pie chart. 
B)  A Pareto chart. 
C)  A side-by-side bar chart. 
D)  A histogram.

Question 16

TABLE 2-9
The Stem-and-Leaf display represents the number of times in a year that a random sample of 100 "lifetime" members of a health club actually visited the facility.
 
-Referring to Table 2-9, if a frequency distribution with equal sized classes was made from this data, and the first class was "0 but less than 10," the frequency of the fifth class would be ________.

Accepted Answer

The answer of TABLE 2-9
The Stem-and-Leaf display represents the number...

Question 17

TABLE 2-17
The figure below is the percentage polygon for the amount of calories for a sample of 36 pizzas products where the upper limits of the intervals are: 310, 340, 370, 400 and 430.
 
-Referring to Table 2-17, roughly what percentage of pizza products contains at least 340 calories?

Accepted Answer

A)  25% 
B)  28% 
C)  39% 
D)  61%

Question 18

To evaluate two categorical variables at the same time, a ________ could be developed.

Accepted Answer

The answer of To evaluate two categorical variables at the...

Question 19

The classification of student major (accounting, economics, management, marketing, other) is an example of

Accepted Answer

A)  a categorical random variable. 
B)  a discrete random variable. 
C)  a continuous random variable. 
D)  a parameter.

Question 20

TABLE 2-15
The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender.
 
-Referring to Table 2-15, of the females in the sample, ________ percent owned a portable DVD.

Accepted Answer

The answer of TABLE 2-15
The table below contains the number...

Exam 2: Presenting Data in Tables and Charts

TABLE 2-18 The following table presents total retail sales in millions of dollars for the leading apparel companies during April 2008 and April 2009. -Referring to Table 2-18, among the 8 stores, ________ saw a sales decline.

TABLE 2-11 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-11, the number of job applicants who scored 50 or above is ________.

Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children's clothing should be manufactured and marketed in larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an example of

When constructing a frequency distribution, classes should be selected in such a way that they are of equal width.

You have collected data on the annual average amount of cash rebate offered by 6 different brands of automobiles sold in the US in 2006 and in 2007. Which of the following is the best for presenting the data?

The date when a production line in a factory is out-of-control will be measured with a ratio scale.

Marital status is an example of a numerical variable.

A personal computer user survey was conducted. The number of computer magazine subscriptions is an example of a ________ numerical variable.

The original data values cannot be assessed once they are grouped into a frequency distribution table.

Data on 1,500 students' height were collected at a larger university in the East Coast. Which of the following is the best chart for presenting the information?

TABLE 2-17 The figure below is the percentage polygon for the amount of calories for a sample of 36 pizzas products where the upper limits of the intervals are: 310, 340, 370, 400 and 430. -Referring to Table 2-17, roughly what percentage of pizza products contains at least 340 calories?

To evaluate two categorical variables at the same time, a ________ could be developed.

The classification of student major (accounting, economics, management, marketing, other) is an example of

TABLE 2-15 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. -Referring to Table 2-15, of the females in the sample, ________ percent owned a portable DVD.