Question 1

$$\text { TABLE 2-12 }$$ 
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.
 $$\begin{array} { l c c c l } 
\hline&\text { For }&\text { Neutral }&\text { Against }&\text { Totals }\
\hline\text { Female } & 38 & 54 & 12 & 104 \
\text { Male } & 12 & 36 & 48 & 96 \
\text { Totals } & 50 & 90 & 60 & 200 \
\hline
\end{array}$$
-Referring to Table 2-12_____, percent of the 200 were females who were against the plan.

Accepted Answer

The answer of $$\text { TABLE 2-12 }$$ 
The table...

Question 2

The width of each bar in a histogram corresponds to the

Accepted Answer

A)  percentage of observations in each class. 
B)  midpoint of each class. 
C)  number of observations in each class. 
D)  differences between the boundaries of the class.

Question 3

A type of vertical bar chart in which the categories are plotted in the descending rank order of the magnitude of their frequencies is called a

Accepted Answer

A)  dot plot. 
B)  pie chart. 
C)  Pareto diagram. 
D)  contingency table.

Question 4

TABLE 2-8
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.
 $$\begin{array} { l l } 
\text { Stem } & \text { Leaves } \
0 & 012222233333344566666667789999 \
1 & 1111222234444455669999 \
2 & 00011223455556889 \
3 & 0000446799 \
4 & 011345567 \
5 & 0077 \
6 & 8 \
7 & 67 \
8 & 3 \
9 & 0247
\end{array}$$
-Referring to Table 2-8, 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 2-8
The Stem-and-Leaf display represents the number...

Question 5

TABLE 2-6
A sample of 200 students at a Big-Ten university was taken after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm. The following table contains the result.

$\begin{array}{lcc}
 \hline &\text { Did Well in Midterm}&\text { Did Poorly in Midterm }\
\hline \text {Studying for  Exam } & 80 & 20 \
\text { Went Bar Hopping } & 30 & 70\
\hline 
\end{array}$

-Referring to Table 2-6, if the sample is a good representation of the population, we can expect _____percent of those who spent the weekend studying to do poorly on the midterm.

Accepted Answer

A)  20 
B)  45 
C)  10 
D)  50

Question 6

One of the advantages of a pie chart is that it clearly shows that the total of all the categories of the pie adds to 100%.

Accepted Answer

A) True 
 B)False

Question 7

TABLE 2-12
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

$\begin{array}{lrrcr}
\hline &\text { For }&\text { Neutral }&\text { Against }&\text {Totals} \
\hline \text {Female} & 38 & 54 & 12 & 104 \
\text {Male} & 12 & 36 & 48 & 96 \
\text {Totals} & 50 & 90 & 60 & 200 \
\hline
\end{array}$

-Referring to Table 2-12, construct a table of row percentages.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 8

$$\text { TABLE 2-12 }$$ 
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.
 $$\begin{array}{l}
\begin{array} { l c c l l } 
\hline&\text { For }&\text {Neutral}&\text { Against }&\text {Totals }\
\hline\text { Female } & 38 & 54 & 12 & 104 \
\text { Male } & 12 & 36 & 48 & 96 \
\text { Totals } & 50 & 90 & 60 & 200 \
\hline
\end{array}
\end{array}$$
-Referring to Table 2-12, if the sample is a good representation of the population, we can expect _____percent of the population will be males.

Accepted Answer

The answer of $$\text { TABLE 2-12 }$$ 
The table...

Question 9

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the percentage of their customers who are below a certain age, it can use an ogive.

Accepted Answer

A) True 
 B)False

Question 10

The percentage polygon is formed by having the lower boundary of each class represent the data in that class and then connecting the sequence of lower boundaries at their respective class percentages.

Accepted Answer

A) True 
 B)False

Question 11

TABLE 2- 5
The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.
 $$\begin{array}{l}
\begin{array} { l l } 
\hline&\text { Relative}\\text {  Time (in Minutes) }&\text { Frequency }\
\hline0 \text { but lessthan } 5 & 0.37 \
5 \text { but less than } 10 & 0.22 \
\text { 10 but lessthan } 15 & 0.15 \
\text { 15 but less than } 20 & 0.10 \
\text { 20 but lessthan } 25 & 0.07 \
\text { 25 but lessthan } 30 & 0.07 \
30 \text { or more } & 0.02 \
\hline
\end{array}
\end{array}$$
-Referring to Table 2-5, if 100 calls were sampled,______of them would have lasted less than 15 minutes.

Accepted Answer

A)  10 
B)  26 
C)  74 
D)  none of the above

Question 12

TABLE 2- 10
The histogram below represents scores achieved by 200 job applicants on a personality profile.
 
-Referring to the histogram from Table 2-10, 90% of the job applicants scored above or equal to ___________.

Accepted Answer

The answer of TABLE 2- 10
The histogram below represents scores...

Question 13

TABLE 2- 10
The histogram below represents scores achieved by 200 job applicants on a personality profile.
 
-Referring to the histogram from Table 2-10, ______percent of the applicants scored between 20 and below 50.

Accepted Answer

The answer of TABLE 2- 10
The histogram below represents scores...

Question 14

The relative frequency is the frequency in each class divided by the total number of observations.

Accepted Answer

A) True 
 B)False

Question 15

TABLE 2-8
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.
 $$\begin{array} { l l } 
\text { Stem } & \text { Leaves } \
0 & 012222233333344566666667789999 \
1 & 1111222234444455669999 \
2 & 00011223455556889 \
3 & 0000446799 \
4 & 011345567 \
5 & 0077 \
6 & 8 \
7 & 67 \
8 & 3 \
9 & 0247
\end{array}$$
-Referring to Table 2-8,_____ of the 100 members visited the health club at least 52 times in a year.

Accepted Answer

The answer of TABLE 2-8
The Stem-and-Leaf display represents the number...

Question 16

TABLE 2-12
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

$\begin{array}{lrrcr}
\hline &\text { For }&\text { Neutral }&\text { Against }&\text {Totals} \
\hline \text {Female} & 38 & 54 & 12 & 104 \
\text {Male} & 12 & 36 & 48 & 96 \
\text {Totals} & 50 & 90 & 60 & 200 \
\hline
\end{array}$

-Referring to the histogram from Table 2- 10, ________percent of the job applicants scored between 10 and 20.

Accepted Answer

The answer of TABLE 2-12
The table below contains the opinions...

Question 17

A Wal-Mart store in a small town monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a Pareto chart.

Accepted Answer

A) True 
 B)False

Question 18

Data on the number of part-time hours students at a public university worked in a week were collected. Which of the following is the best chart for presenting the information?

Accepted Answer

A)  a percentage polygon 
B)  a pie chart 
C)  a Pareto diagram 
D)  a percentage table

Question 19

TABLE 2-2
At a meeting of information systems officers for regional offices of a national company, a survey was taken to determine the number of employees the officers supervise in the operation of their departments, where X is the number of employees overseen by each information systems officer.
 $$\begin{array} { c l } 
\hline X & \text { f } \
\hline 1 & 7 \
2 & 5 \
3 & 11 \
4 & 8 \
5 & 9 \
\hline
\end{array}$$
-Referring to Table 2-2, how many regional offices are represented in the survey results?

Accepted Answer

A)  11 
B)  5 
C)  15 
D)  40

Question 20

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive first.

Accepted Answer

A) True 
 B)False

Exam 2: Presenting Data in Tables and Charts

The width of each bar in a histogram corresponds to the

A type of vertical bar chart in which the categories are plotted in the descending rank order of the magnitude of their frequencies is called a

One of the advantages of a pie chart is that it clearly shows that the total of all the categories of the pie adds to 100%.

Apple Computer, Inc. collected information on the age of their customers. The youngest customer was 12 and the oldest was 72. To study the percentage of their customers who are below a certain age, it can use an ogive.

The percentage polygon is formed by having the lower boundary of each class represent the data in that class and then connecting the sequence of lower boundaries at their respective class percentages.

TABLE 2- 10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-10, 90% of the job applicants scored above or equal to ___________.

TABLE 2- 10 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Table 2-10, ______percent of the applicants scored between 20 and below 50.

The relative frequency is the frequency in each class divided by the total number of observations.

A Wal-Mart store in a small town monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a Pareto chart.

Data on the number of part-time hours students at a public university worked in a week were collected. Which of the following is the best chart for presenting the information?

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive first.