Question 1

Exhibit 1-3
Part of the data bank of a corporation is shown below.
  
-Refer to Exhibit 1-3. Yearly Salary is an example of ________ data.

Accepted Answer

A) nominal 
B) ordinal 
C) interval 
D) ratio 
A) nominal 
B) ordinal 
C) interval 
D) ratio

Question 2

The following national weather report gives the temperatures and weather conditions on the previous day in cities across the nation.
City Hi Lo Condition
Albany, N.Y. 88 60 cloudy
Chicago 92 64 clear
Dallas-Ft.Worth 89 72 cloudy
Denver 75 54 clear
Hartford 88 61 cloudy
Honolulu 86 70 clear
Kansas City 93 74 clear
Los Angeles 80 62 cloudy
Nashville 94 72 rain
New York City 90 69 rain
Philadelphia 90 67 rain
a.How many elements are in this data set?
b.How many variables are in this data set?
c.How many observations are there in the above data set?
d.Which variables are categorical and which are quantitative?
e.
What measurement scale is used for temperature and weather conditions?

Accepted Answer

a.11
b.3
c.11
d.Temperature is

Question 3

The following information regarding the top eight Fortune 500 companies was presented in an issue of Fortune Magazine.
   
a.How many elements are in the above data set?
b.How many variables are in this data set?
c.How many observations are in this data set?
d.Which variables are categorical and which are quantitative variables?
e.
What measurement scale is used for each variable?

Accepted Answer

a.10
b.4
c.10
d.Sales and Prof

Question 4

The subject of data mining deals with

Accepted Answer

A) methods for developing useful decision-making information from large data bases 
B) keeping data secure so that unauthorized individuals cannot access the data 
C) computational procedure for data analysis 
D) computing the average for data 
A) methods for developing useful decision-making information from large data bases 
B) keeping data secure so that unauthorized individuals cannot access the data 
C) computational procedure for data analysis 
D) computing the average for data

Question 5

Ordinary arithmetic operations are meaningful

Accepted Answer

A) only with categorical data 
B) only with quantitative data 
C) either with quantitative or categorical data 
D) None of these alternatives is correct. 
A) only with categorical data 
B) only with quantitative data 
C) either with quantitative or categorical data 
D) None of these alternatives is correct.

Question 6

The following information regarding the ten richest Americans was reported in a recent issue of Forbes.
   
a.How many elements are in the above data set?
b.How many variables are in this data set?
c.How many observations are in this data set?
d.Which variables are categorical and which are quantitative?
e.
What measurement scale is used for each variable?

Accepted Answer

a.10
b.5
c.10
d.Worth and Age

Question 7

Exhibit 1-3
Part of the data bank of a corporation is shown below.
  
-Refer to Exhibit 1-3. Years of Experience is an example of ________ data.

Accepted Answer

A) nominal 
B) ordinal 
C) interval 
D) ratio 
A) nominal 
B) ordinal 
C) interval 
D) ratio

Question 8

Temperature is an example of a variable that uses

Accepted Answer

A) the ratio scale 
B) the interval scale 
C) the ordinal scale 
D) either the ratio or the ordinal scale 
A) the ratio scale 
B) the interval scale 
C) the ordinal scale 
D) either the ratio or the ordinal scale

Question 9

Data collected at the same, or approximately the same, point in time are

Accepted Answer

A) time series data 
B) approximate time series data 
C) crossectional data 
D) approximate data 
A) time series data 
B) approximate time series data 
C) crossectional data 
D) approximate data

Question 10

The sample size

Accepted Answer

A) can be larger than the population size 
B) is always smaller than the population size 
C) can be larger or smaller than the population size 
D) is always equal to the size of the population 
A) can be larger than the population size 
B) is always smaller than the population size 
C) can be larger or smaller than the population size 
D) is always equal to the size of the population

Question 11

The scale of measurement that is used to rank order the observation for a variable is called the

Accepted Answer

A) ratio scale 
B) ordinal scale 
C) nominal scale 
D) interval scale 
A) ratio scale 
B) ordinal scale 
C) nominal scale 
D) interval scale

Question 12

Which of the following variables use the ratio scale of measurement?

Accepted Answer

A) social security number 
B) temperature 
C) gender 
D) income 
A) social security number 
B) temperature 
C) gender 
D) income

Question 13

Statistical inference

Accepted Answer

A) refers to the process of drawing inferences about the sample based on the characteristics of the population 
B) is the same as descriptive statistics 
C) is the process of drawing inferences about the population based on the information taken from the sample 
D) is the same as a census 
A) refers to the process of drawing inferences about the sample based on the characteristics of the population 
B) is the same as descriptive statistics 
C) is the process of drawing inferences about the population based on the information taken from the sample 
D) is the same as a census

Question 14

A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 24 years. This is an example of

Accepted Answer

A) a census 
B) descriptive statistics 
C) an experiment 
D) statistical inference 
A) a census 
B) descriptive statistics 
C) an experiment 
D) statistical inference

Question 15

A recent issue of a national magazine reported that in a national public opinion survey conducted among 2,000 individuals, 56% were in favor of gun control, 40% opposed gun control, and 4% had no opinion on the subject.
a.What is the sample in this survey?
b.Based on the sample, what percentage of the population would you think is in favor of gun control?
c.Based on the sample, what percentage of the population would you think have no opinion on the subject?

Accepted Answer

a.The 2000 individua

Question 16

In Excel, a worksheet that displays the formulas used to create the results is a

Accepted Answer

A) results worksheet 
B) formula worksheet 
C) value worksheet 
D) sample worksheet 
A) results worksheet 
B) formula worksheet 
C) value worksheet 
D) sample worksheet

Question 17

Since a sample is a subset of the population, the sample mean

Accepted Answer

A) is always smaller than the mean of the population 
B) is always larger than the mean of the population 
C) must be equal to the mean of the population 
D) can be larger, smaller, or equal to the mean of the population 
A) is always smaller than the mean of the population 
B) is always larger than the mean of the population 
C) must be equal to the mean of the population 
D) can be larger, smaller, or equal to the mean of the population

Question 18

Which scale of measurement can be either numeric or nonnumeric?

Accepted Answer

A) nominal 
B) ratio 
C) interval 
D) None of these alternatives is correct. 
A) nominal 
B) ratio 
C) interval 
D) None of these alternatives is correct.

Question 19

Michael, Inc., a manufacturer of electric guitars, is a small firm with 50 employees. The table below shows the hourly wage distribution of the employees.
   
a.How many employees receive hourly wages of at least $18?
b.What percentage of the employees has hourly wages of at least $18?
c.What percentage of the employees has hourly wages of less than $14?

Accepted Answer

The answer of Michael, Inc., a manufacturer of electric guitars,...

Question 20

Which of the following is a scale of measurement?

Accepted Answer

A) ratio 
B) primal 
C) divisional 
D) remedial 
A) ratio 
B) primal 
C) divisional 
D) remedial

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Yearly Salary is an example of ________ data.

The subject of data mining deals with

Ordinary arithmetic operations are meaningful

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Years of Experience is an example of ________ data.

Temperature is an example of a variable that uses

Data collected at the same, or approximately the same, point in time are

The sample size

The scale of measurement that is used to rank order the observation for a variable is called the

Which of the following variables use the ratio scale of measurement?

Statistical inference

A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 24 years. This is an example of

In Excel, a worksheet that displays the formulas used to create the results is a

Since a sample is a subset of the population, the sample mean

Which scale of measurement can be either numeric or nonnumeric?

Which of the following is a scale of measurement?

Descriptive Statistics: Tabular and Graphical Presentations

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Filters

Exam 1: Data and Statistics

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Yearly Salary is an example of ________ data.

The subject of data mining deals with

Ordinary arithmetic operations are meaningful

Exhibit 1-3 Part of the data bank of a corporation is shown below. -Refer to Exhibit 1-3. Years of Experience is an example of ________ data.

Temperature is an example of a variable that uses

Data collected at the same, or approximately the same, point in time are

The sample size

The scale of measurement that is used to rank order the observation for a variable is called the

Which of the following variables use the ratio scale of measurement?

Statistical inference

A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 24 years. This is an example of

In Excel, a worksheet that displays the formulas used to create the results is a

Since a sample is a subset of the population, the sample mean

Which scale of measurement can be either numeric or nonnumeric?

Which of the following is a scale of measurement?

Descriptive Statistics: Tabular and Graphical Presentations

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Filters