Question 1

With nominal data,there is one and only one way the possible values can be ordered.

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

Give an example of interval data that can also be treated as ordinal data and nominal data.

Accepted Answer

Example: Your actual age is in

Question 4

Car Buyers Forty car buyers were asked to indicate which car dealer offered the best overall service.The four choices were Contour Motors (C),Modern Chrysler (M),Tonneau Auto (T),and Uncanny Chevrolet (U).The following data were obtained:   ​ ​
-{Car Buyers Narrative} Construct a pie chart of this data.Which car dealer offered the best overall service?

Accepted Answer

@#IMG-DLM& ContourMotors (C)re

Question 5

Bar and pie charts are graphical techniques for nominal data.The former focus the attention on the frequency of the occurrences of each category,and the later emphasizes the proportion of occurrences of each category.

Accepted Answer

A) True 
 B)False

Question 6

Explain the difference between ordinal data and interval data.

Accepted Answer

The critical difference between them is

Question 7

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 8

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

Accepted Answer

percentage

Question 9

Using Excel,draw two pie charts that compare type of customer for males vs.females.Are gender and promotional customers related?   ​
​

Accepted Answer

More females promoti

Question 10

Explain why religious preference is not an ordinal variable.

Accepted Answer

The values of religi

Question 11

You cannot calculate and interpret differences between numbers assigned to ordinal data.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following techniques can be used to explore relationships between two nominal variables?

Accepted Answer

A) Comparing the relative frequencies within a cross-classification table. 
B) Comparing pie charts,one for each column (or row). 
C) Comparing bar charts,one for each column (or row). 
D) All of these choices are true. 
A) Comparing the relative frequencies within a cross-classification table. 
B) Comparing pie charts,one for each column (or row). 
C) Comparing bar charts,one for each column (or row). 
D) All of these choices are true.

Question 13

A variable is some characteristic of a population or sample.

Accepted Answer

A) True 
 B)False

Question 14

If the relative frequencies in the rows of a cross-classification table are similar,then the two variables shown in the table are not related.

Accepted Answer

A) True 
 B)False

Question 15

At the end of a safari,the tour guide asks the vacationers to respond to the questions listed below.For each question,determine whether the possible responses are interval,nominal,or ordinal.
a.How many safaris have you taken prior to this one?
b.Do you feel that your tour safari lasted sufficiently long (yes/no)?
c.Which of the following features of the accommodations did you find most attractive: location,facilities,room size,service,or price?
d.What is the maximum number of hours per day that you would like to spend traveling?
e.Is your overall rating of this safari: excellent,good,fair,or poor?

Accepted Answer

a. Interval 
b. Nomi

Question 16

Which of the following statements about pie charts is false?

Accepted Answer

A) A pie chart is a graphical representation of a relative frequency distribution. 
B) You can always determine frequencies for each category by looking at a pie chart. 
C) The total percentage of all the slices of a pie chart is 100%. 
D) The area of a slice of a pie chart is the proportion of all the individuals that fall into that particular category. 
A) A pie chart is a graphical representation of a relative frequency distribution. 
B) You can always determine frequencies for each category by looking at a pie chart. 
C) The total percentage of all the slices of a pie chart is 100%. 
D) The area of a slice of a pie chart is the proportion of all the individuals that fall into that particular category.

Question 17

Whether or not you are over the age of 21 is a nominal variable.

Accepted Answer

A) True 
 B)False

Question 18

{All-Nighters Narrative} Briefly explain (using percentages)whether staying up all night before this midterm is related to a student doing poorly.

Accepted Answer

Yes,they are related.Of those staying up

Question 19

In the following cross-classification table,gender and fantasy baseball participation are related.

Accepted Answer

A) True 
 B)False

Question 20

Your age is an interval variable.

Accepted Answer

A) True 
 B)False

Exam 2: Graphical Descriptive Techniques 1

With nominal data,there is one and only one way the possible values can be ordered.

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

Give an example of interval data that can also be treated as ordinal data and nominal data.

Bar and pie charts are graphical techniques for nominal data.The former focus the attention on the frequency of the occurrences of each category,and the later emphasizes the proportion of occurrences of each category.

Explain the difference between ordinal data and interval data.

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

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

Using Excel,draw two pie charts that compare type of customer for males vs.females.Are gender and promotional customers related? ​ ​

Explain why religious preference is not an ordinal variable.

You cannot calculate and interpret differences between numbers assigned to ordinal data.

Which of the following techniques can be used to explore relationships between two nominal variables?

A variable is some characteristic of a population or sample.

If the relative frequencies in the rows of a cross-classification table are similar,then the two variables shown in the table are not related.

Which of the following statements about pie charts is false?

Whether or not you are over the age of 21 is a nominal variable.

{All-Nighters Narrative} Briefly explain (using percentages)whether staying up all night before this midterm is related to a student doing poorly.

In the following cross-classification table,gender and fantasy baseball participation are related.

Your age is an interval variable.

What Is Statistics

Graphical Descriptive Techniques 2

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

Simple Linear Regression and Correlation

Multiple Regression

Model Building

Nonparametric Statistics

Time-Series Analytics and Forecasting

Statistical Process Control

Decision Analysis

Conclusion

Filters

Using Excel,draw two pie charts that compare type of customer for males vs.females.Are gender and promotional customers related?