Question 1

We can summarize nominal data in a table that presents the categories and their counts. This table is called a(n) ____________________ distribution.

Accepted Answer

The answer of We can summarize nominal data in a...

Question 2

For each of the following examples, identify the data type as nominal, ordinal, or interval.
a.The final grade received by a student in a neuro-science class.
b.The number of students in a Physics course.
c.The starting salary of a PhD graduate.
d.The size of an order of fries (small, medium, large, super-size) purchased by a Burger King customer.
e.The college you are enrolled in (Arts and Sciences, Business, Education, etc.).

Accepted Answer

a.Ordinal
b.Interval

Question 3

All calculations are permitted on interval data.

Accepted Answer

A) True 
 B)False

Question 4

Using the following cross-classification table, draw two bar charts that compare pet ownership for males vs. females. Are gender and pet ownership related?
 $$\begin{array} { | l | c | c | } 
\hline & \text { Own a pet } & \text { Dan't awn a pet } \
\hline \text { Females } & 75 & 25 \
\text { Males } & 40& 60 \
\hline
\end{array}$$

Accepted Answer

The first "side-by-side" bar chart below

Question 5

Suppose you measure the number of minutes it takes an employee to complete a task, where the maximum allowed time is 5 minutes, and each time is rounded to the nearest minute. Data from 130 employees is summarized below. How long did it take most employees to complete the task? $$\begin{array} { | l | c c c c c | } 
\hline \text { Time (minutes) } & 1 & 2 & 3 & 4 & 5 \
\hline \text { Frequency } & 25 & 40 & 50 & 35 & 30 \
\hline
\end{array}$$

Accepted Answer

A) 5 minutes 
B) 3 minutes 
C) 30 minutes 
D) 50 minutes 
A) 5 minutes 
B) 3 minutes 
C) 30 minutes 
D) 50 minutes

Question 6

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-If two nominal variables are unrelated, the patterns exhibited in their corresponding pie charts should be approximately the same. If a relationship exists, then some pie charts will differ from others.

Accepted Answer

A) True 
 B)False

Question 7

Before leaving a particular restaurant, customers are asked to respond to the questions listed below. For each question, determine whether the possible responses are interval, nominal, or ordinal.
a.What is the approximate distance (in miles) between this restaurant and your residence?
b.Have you ever eaten at this restaurant before?
c.On how many occasions have you eaten at the restaurant before?
d.Which of the following attributes of this restaurant do you find most attractive: service, prices, quality of the food, or the menu?
e.What is your overall rating of the restaurant: excellent, good, fair, or poor?

Accepted Answer

a.Interval
b.Nominal

Question 8

A pie chart shows the ____________________ of individuals that fall into each category.

Accepted Answer

percentage

Question 9

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-A college professor classifies his students according to their grade point average (GPA) and their gender. The resulting cross-classification table is shown below. $$\begin{array}{l}
\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { GPA }\
\begin{array} { | l | c c c | } 
\hline \text { Gender } & \text { Under 2.0 } & \text { 2.0 - 3. 0 } & \text { Over 3.0 } \
\hline \text { Male } & 10 & 30 & 15 \
\text { Female } & 15 & 25 & 35 \
\hline
\end{array}
\end{array}$$ If you made a pie chart for male GPAs and a pie chart for female GPAs, those pie charts would look the same.

Accepted Answer

A) True 
 B)False

Question 10

Explain the difference between ordinal data and interval data.

Accepted Answer

The critical difference between them is

Question 11

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-A survey of 100 adults was conducted to see if gender is related to pet ownership. The results are summarized in the bar chart below. Which of the following statements describes the relationship?

Accepted Answer

A) Pet ownership and gender are not related. 
B) More females own pets than don't own pets. 
C) Fewer males own pets than don't own pets. 
D) None of these choices. 
A) Pet ownership and gender are not related. 
B) More females own pets than don't own pets. 
C) Fewer males own pets than don't own pets. 
D) None of these choices.

Question 12

A bar chart is used to represent interval data.

Accepted Answer

A) True 
 B)False

Question 13

A(n) ____________________ chart is not able to show frequencies. It can only show relative frequencies.

Accepted Answer

The answer of A(n) ____________________ chart is not able to...

Question 14

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-A cross-classification table summarizes data from two nominal variables.

Accepted Answer

A) True 
 B)False

Question 15

A researcher wishes to estimate the textbook costs of first-year students at Barry University. To do so, he recorded the textbook cost of 300 first-year students and found that their average textbook cost was $195 per semester. The variable of interest to the researcher is

Accepted Answer

A) textbook cost. 
B) class rank. 
C) number of students. 
D) name of university. 
A) textbook cost. 
B) class rank. 
C) number of students. 
D) name of university.

Question 16

Which situation identifies when to use pie charts and/or bar charts?

Accepted Answer

A) You want to describe a single set of data. 
B) Your data is nominal. 
C) You want to show the number or the percentage of individuals in each category. 
D) All of these choices are true. 
A) You want to describe a single set of data. 
B) Your data is nominal. 
C) You want to show the number or the percentage of individuals in each category. 
D) All of these choices are true.

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-Data that contains information on two variables is called ____________________ data.

Accepted Answer

The answer of NARRBEGIN: Internet Classes
Internet Classes
A survey of 25...

Question 19

NARRBEGIN: Internet Classes
Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. $$\begin{array} { c | l } 
\text { Stem } & \text { Leaves } \
\hline 3 & 15 \
4 & 01457889 \
5 & 0134677 \
6 & 24568 \
7 & 29 \
8 & \
9 & 5
\end{array}$$ NARREND
-When studying the responses to two nominal questions, we should develop a

Accepted Answer

A) cross-classification table. 
B) frequency distribution table. 
C) cumulative percentage distribution table. 
D) scatter diagram. 
A) cross-classification table. 
B) frequency distribution table. 
C) cumulative percentage distribution table. 
D) scatter diagram.

Question 20

A frequency distribution lists the categories and the proportion with which each occurs.

Accepted Answer

A) True 
 B)False

We can summarize nominal data in a table that presents the categories and their counts. This table is called a(n) ____________________ distribution.

All calculations are permitted on interval data.

Using the following cross-classification table, draw two bar charts that compare pet ownership for males vs. females. Are gender and pet ownership related? Own a pet Dan't awn a pet Females 75 25 Males 40 60

A pie chart shows the ____________________ of individuals that fall into each category.

Explain the difference between ordinal data and interval data.

A bar chart is used to represent interval data.

A(n) ____________________ chart is not able to show frequencies. It can only show relative frequencies.

A researcher wishes to estimate the textbook costs of first-year students at Barry University. To do so, he recorded the textbook cost of 300 first-year students and found that their average textbook cost was $195 per semester. The variable of interest to the researcher is

Which situation identifies when to use pie charts and/or bar charts?

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

A frequency distribution lists the categories and the proportion with which each occurs.

What Is Statistics

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests Optional

Simple Linear Regression and Correlation

Multiple Regression

Filters

Exam 2: Graphical Descriptive Techniques I

We can summarize nominal data in a table that presents the categories and their counts. This table is called a(n) ____________________ distribution.

All calculations are permitted on interval data.

Using the following cross-classification table, draw two bar charts that compare pet ownership for males vs. females. Are gender and pet ownership related? Own a pet Dan't awn a pet Females 75 25 Males 40 60

A pie chart shows the ____________________ of individuals that fall into each category.

Explain the difference between ordinal data and interval data.

A bar chart is used to represent interval data.

A(n) ____________________ chart is not able to show frequencies. It can only show relative frequencies.

A researcher wishes to estimate the textbook costs of first-year students at Barry University. To do so, he recorded the textbook cost of 300 first-year students and found that their average textbook cost was $195 per semester. The variable of interest to the researcher is

Which situation identifies when to use pie charts and/or bar charts?

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

A frequency distribution lists the categories and the proportion with which each occurs.

What Is Statistics

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests Optional

Simple Linear Regression and Correlation

Multiple Regression

Filters