Question 1

The daily closing price of Apple stock over the past month would be a time series.

Accepted Answer

A) True 
 B)False  True

Question 2

The number of FedEx shipping centers in each of 50 cities would be ordinal level data.

Accepted Answer

A) True 
 B)False  False

Question 3

Which statement is correct?

Accepted Answer

A) Selecting every fifth shopper arriving at a store will approximate a random sample of shoppers. 
B) Selecting only shoppers who drive SUVs is a stratified sampling method. 
C) A census is preferable to a sample for most business problems. 
D) Stratified samples are usually cheaper than other methods. 
A) Selecting every fifth shopper arriving at a store will approximate a random sample of shoppers. 
B) Selecting only shoppers who drive SUVs is a stratified sampling method. 
C) A census is preferable to a sample for most business problems. 
D) Stratified samples are usually cheaper than other methods. A

Question 4

Ordinal data are data that can be ranked based on some natural characteristic of the items.

Accepted Answer

A) True 
 B)False

Question 5

This year, Oxnard University produced two football All-Americans. This is an example of continuous data.

Accepted Answer

A) True 
 B)False

Question 6

The Statistical Abstract of the United States is a huge annual compendium of data for the United States, and it is available online free of charge.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is true?

Accepted Answer

A) The type of charge card used by a customer (Visa, MasterCard, AmEx) is ordinal data. 
B) The duration (minutes) of a flight from Boston to Minneapolis is ratio data. 
C) The number of Nobel Prize-winning faculty at Oxnard University is continuous data. 
D) The number of regional warehouses owned by Jankord Industries is ordinal data. 
A) The type of charge card used by a customer (Visa, MasterCard, AmEx) is ordinal data. 
B) The duration (minutes) of a flight from Boston to Minneapolis is ratio data. 
C) The number of Nobel Prize-winning faculty at Oxnard University is continuous data. 
D) The number of regional warehouses owned by Jankord Industries is ordinal data.

Question 8

A problem with convenience sampling is that the target population is not well defined.

Accepted Answer

A) True 
 B)False

Question 9

Your telephone area code is an example of a(n) ____________ variable.

Accepted Answer

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

Question 10

Each row in a multivariate data matrix is an observation (e.g., an individual response).

Accepted Answer

A) True 
 B)False

Question 11

A random sample is one in which the:

Accepted Answer

A) probability that an item is selected for the sample is the same for all population items. 
B) population items are selected haphazardly by experienced workers. 
C) items to be selected from the population are specified based on expert judgment. 
D) probability of selecting a population item depends on the item's data value. 
A) probability that an item is selected for the sample is the same for all population items. 
B) population items are selected haphazardly by experienced workers. 
C) items to be selected from the population are specified based on expert judgment. 
D) probability of selecting a population item depends on the item's data value.

Question 12

Which is a categorical variable?

Accepted Answer

A) The brand of jeans you usually wear 
B) The price you paid for your last pair of jeans 
C) The distance to the store where you purchased your last pair of jeans 
D) The number of pairs of jeans that you own 
A) The brand of jeans you usually wear 
B) The price you paid for your last pair of jeans 
C) The distance to the store where you purchased your last pair of jeans 
D) The number of pairs of jeans that you own

Question 13

A bivariate data set has only two observations on a variable.

Accepted Answer

A) True 
 B)False

Question 14

Judgment sampling is sometimes preferred over random sampling, for example, when:

Accepted Answer

A) the desired sample size is much larger than the population. 
B) the sampling budget is large and the population is conveniently located. 
C) time is short and the sampling budget is limited. 
D) the population is readily accessible and sampling is nondestructive. 
A) the desired sample size is much larger than the population. 
B) the sampling budget is large and the population is conveniently located. 
C) time is short and the sampling budget is limited. 
D) the population is readily accessible and sampling is nondestructive.

Question 15

A problem with nonrandom sampling is that:

Accepted Answer

A) larger samples need to be taken to reduce the sampling error inherent in this approach. 
B) not every item in the population has the same chance of being selected, as it should. 
C) it is usually more expensive than random sampling. 
D) it generally provides lower response rates than random sampling. 
A) larger samples need to be taken to reduce the sampling error inherent in this approach. 
B) not every item in the population has the same chance of being selected, as it should. 
C) it is usually more expensive than random sampling. 
D) it generally provides lower response rates than random sampling.

Question 16

A Likert scale with an odd number of scale points between "Strongly Agree" and "Strongly Disagree":

Accepted Answer

A) cannot have equal scale distances. 
B) cannot have a neutral middle point. 
C) must have a verbal label on each scale point. 
D) is often used in marketing surveys. 
A) cannot have equal scale distances. 
B) cannot have a neutral middle point. 
C) must have a verbal label on each scale point. 
D) is often used in marketing surveys.

Question 17

What kind of sampling method would you suggest in order to tabulate the number of formulas on a typical page of the Doane-Seward textbook? Defend your choice.

Accepted Answer

Pages are numbered, so a simpl

Question 18

A Likert scale with an even number of scale points between "Strongly Agree" and "Strongly Disagree":

Accepted Answer

A) cannot have equal scale distances. 
B) is intended to prevent "neutral" choices. 
C) must have a verbal label on each scale point. 
D) is rarely used in surveys. 
A) cannot have equal scale distances. 
B) is intended to prevent "neutral" choices. 
C) must have a verbal label on each scale point. 
D) is rarely used in surveys.

Question 19

A worker collecting data from every other shopper who leaves a store is taking a simple random sample of customer opinion.

Accepted Answer

A) True 
 B)False

Question 20

When the population is large, a sample estimate is usually preferable to a census.

Accepted Answer

A) True 
 B)False

The daily closing price of Apple stock over the past month would be a time series.

The number of FedEx shipping centers in each of 50 cities would be ordinal level data.

Which statement is correct?

Ordinal data are data that can be ranked based on some natural characteristic of the items.

This year, Oxnard University produced two football All-Americans. This is an example of continuous data.

The Statistical Abstract of the United States is a huge annual compendium of data for the United States, and it is available online free of charge.

Which of the following is true?

A problem with convenience sampling is that the target population is not well defined.

Your telephone area code is an example of a(n) ____________ variable.

Each row in a multivariate data matrix is an observation (e.g., an individual response).

A random sample is one in which the:

Which is a categorical variable?

A bivariate data set has only two observations on a variable.

Judgment sampling is sometimes preferred over random sampling, for example, when:

A problem with nonrandom sampling is that:

A Likert scale with an odd number of scale points between "Strongly Agree" and "Strongly Disagree":

What kind of sampling method would you suggest in order to tabulate the number of formulas on a typical page of the Doane-Seward textbook? Defend your choice.

A Likert scale with an even number of scale points between "Strongly Agree" and "Strongly Disagree":

A worker collecting data from every other shopper who leaves a store is taking a simple random sample of customer opinion.

When the population is large, a sample estimate is usually preferable to a census.

Overview of Statistics

Describing Data Visually

Descriptive Statistics

Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions and Estimation

One-Sample Hypothesis Tests

Two-Sample Hypothesis Tests

Analysis of Variance

Simple Regression

Multiple Regression

Time Series Analysis

Chi-Square Tests

Nonparametric Tests

Quality Management

Filters

Exam 2: Data Collection

The daily closing price of Apple stock over the past month would be a time series.

The number of FedEx shipping centers in each of 50 cities would be ordinal level data.

Which statement is correct?

Ordinal data are data that can be ranked based on some natural characteristic of the items.

This year, Oxnard University produced two football All-Americans. This is an example of continuous data.

The Statistical Abstract of the United States is a huge annual compendium of data for the United States, and it is available online free of charge.

Which of the following is true?

A problem with convenience sampling is that the target population is not well defined.

Your telephone area code is an example of a(n) ____________ variable.

Each row in a multivariate data matrix is an observation (e.g., an individual response).

A random sample is one in which the:

Which is a categorical variable?

A bivariate data set has only two observations on a variable.

Judgment sampling is sometimes preferred over random sampling, for example, when:

A problem with nonrandom sampling is that:

A Likert scale with an odd number of scale points between "Strongly Agree" and "Strongly Disagree":

What kind of sampling method would you suggest in order to tabulate the number of formulas on a typical page of the Doane-Seward textbook? Defend your choice.

A Likert scale with an even number of scale points between "Strongly Agree" and "Strongly Disagree":

A worker collecting data from every other shopper who leaves a store is taking a simple random sample of customer opinion.

When the population is large, a sample estimate is usually preferable to a census.

Overview of Statistics

Describing Data Visually

Descriptive Statistics

Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions and Estimation

One-Sample Hypothesis Tests

Two-Sample Hypothesis Tests

Analysis of Variance

Simple Regression

Multiple Regression

Time Series Analysis

Chi-Square Tests

Nonparametric Tests

Quality Management

Filters