Deck 3: Surveys and Sampling

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Question
Consider the following to answer the question(s) below.
ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a sample of their regular customers.
Suppose that ASW's regular customers belong to a rewards program and have a customer rewards ID number. ASW decides to randomly select 100 numbers. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
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Question
Two of the questions asked in the survey of employees are shown below.
• Since exercise is so important to good health, would you be willing to participate in organized walks during lunch hour?
• Would you attend a "low fat cooking" demonstration?
a. Are these questions valid (appropriately worded)? Explain.
b. Which question is more neutral? Explain.
Question
All regular ASW customers is known as the ________ of the study.

A) parameter
B) statistic
C) target population
D) sampling frame
E) sample
Question
ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a random sample of their regular customers. Under consideration are several plans for selecting the sample. Name the sampling strategy for each.
a. Regular customers belong to a rewards program and have a customer rewards ID number. Randomly select 100 numbers.
b. ASW has stores in five different cities in Canada. Randomly select one of the stores and survey all regular customers that belong to its rewards program.
c. ASW has an alphabetized list of regular customers who belong to their rewards program. After randomly selecting a customer on the list, every 25th customer from that point on is chosen to be in the sample.
d. Customers who belong to the rewards program are grouped into four age categories (under 21, 21 to 35, 36 to 50, and over 50). Randomly select 10 regular customers in each age category.
Question
Which of the following survey questions is leading?

A) Given the prevalence of identity theft, are you reluctant to provide credit card information online?
B) Are you confident that any information you provide online is secure?
C) Are you concerned about the security of online transactions?
D) Both A and B
E) Both B and C
Question
A consumer research group is interested in how older drivers view hybrid cars. Specifically, they wish to assess the percentage of drivers in Canada, 50 years of age or older who intend to purchase a hybrid in the next two years. Suppose that a list of CARP (Canadian Association of Retired Persons) members is used as the sampling frame. Based on a systematic sample, they estimated the percentage to be 17%.
a. Define the target population.
b. Define the parameter.
c. What is the statistic?
d. How might the results be biased?
Question
Which of the following is the parameter of interest in the ASW study?

A) all regular ASW customers
B) % of regular ASW customers who have concerns about online security
C) ASW customers who belong to the rewards program
D) % of ASW customers who belong to the rewards program that don't shop online
E) none of the above
Question
Which of the following statements about this study is false?

A) Most likely, 17% of those sampled intend to purchase a hybrid in the next two years.
B) Systematic random sampling is a valid sampling technique
C) 17% is a statistic.
D) 17% of all Canadian drivers 50 years of age or older intend to purchase a hybrid in the next two years.
E) None of the statements given in the set of possible answers are false.
Question
In developing and conducting a survey, what is the purpose of the pilot test phase?

A) To demonstrate flaws in the survey
B) To generate initial data to analyze
C) To determine the cost of the survey
D) To make sure that the respondents like the questions
E) To determine if the results can be predicted
Question
Consider the following to answer the question(s) below.
A consumer research group is interested in how older drivers view hybrid cars. Specifically, they wish to assess the percentage of drivers in Canada 50 years of age or older who intend to purchase a hybrid in the next two years. Suppose that they selected a systematic sample from a list of CARP (Canadian Association of Retired Persons) members. Based on this sample, they estimated the percentage to be 17%.
The sampling frame for this study is

A) All drivers in Canada 50 years of age or older
B) 17%
C) The list of CARP members
D) How older drivers view hybrid cars
E) 83%
Question
Two of the questions asked in the survey of customers are shown below.
• Given the prevalence of identity theft, are you reluctant to provide credit card information online?
• Are you confident that any information you provide online is secure?
a. Are these questions valid (appropriately worded)? Explain.
b. Which question is more neutral? Explain.
Question
One member of the management team at ASW suggests that their survey could be conducted online. Customers logging on to the online store would be asked to take a few minutes to complete the survey and would be offered a coupon as incentive to participate. Which of the following statements is true?

A) This is a voluntary response sample.
B) This would result in an unbiased random sample.
C) This would result in a biased sample.
D) Both A and B
E) Both A and C
Question
In conducting a personal interview, the interviewer is allowed to arbitrarily decide who should be interviewed. Which of the following statements is true?

A) This is a biased sample.
B) This is a voluntary response sample.
C) This is a simple random sample.
D) This is an unbiased sample
E) This is a representative sample.
Question
Suppose the administration decides to do the following. At a Starbucks located on campus, every tenth person who enters on a Monday morning is selected to be surveyed. Explain why this may be biased.
Question
Consider the following to answer the question(s) below.
The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. To do this, they plan to survey a sample of their employees.
Suppose that the university randomly selects a school (e.g., the Business School) and surveys all of the individuals (administration, faculty, professional staff, clerical, and maintenance) who work in that school. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
Question
One member of the management team at ASW suggests that their survey could be conducted online. Customers logging on to the online store would be asked to take a few minutes to complete the survey and would be offered a coupon as incentive to participate. Explain how this approach might be biased.
Question
In the ASW study described above,
a. Define the target population.
b. Define the parameter.
c. What is the sampling frame?
d. How might the results be biased?
Question
Consider the following to answer the question(s) below.
ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a sample of their regular customers.
Suppose that ASW has an alphabetized list of regular customers who belong to their rewards program. After randomly selecting a customer on the list, every 25th customer from that point on is chosen to be in the sample. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
Question
Consider the following to answer the question(s) below.
The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. To do this, they plan to survey a sample of their employees.
Suppose that there are five categories of employees (administration, faculty, professional staff, clerical, and maintenance) and the university decides to randomly select ten individuals from each category. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
Question
The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. To do this, they plan to survey a random sample of employees. Under consideration are several plans for selecting the sample. Name the sampling strategy for each.
a. There are five categories of employees (administration, faculty, professional staff, clerical, and maintenance). Randomly select ten individuals from each category.
b. Each employee has an ID number. Randomly select 50 numbers.
c. Randomly select a school within the university (e.g., Business School) and survey all of the individuals (administration, faculty, professional staff, clerical and maintenance) who work in that school.
d. The HR Department has an alphabetized list of newly hired employees (hired within the last five years). After starting the process by randomly selecting an employee from the list, then every 5th name is chosen to be included in the sample.
Question
When a tax auditor randomly selects 20 accounts from all the accounts of a business to check for accuracy, she has selected

A) a sample from a population
B) a census
C) a convenience sample
D) a biased sample
E) a stratified sample
Question
A professor hands out survey forms to the students in her own classes. If the population is all students attending the university, this is an example of

A) a convenience sample
B) a random sample
C) a stratified sample
D) a census
E) an unbiased sample
Question
An Internet service provider has the capability of tracking the time that each of its customers spends connected to the Internet during a month. These data would constitute

A) a population
B) a convenience sample
C) a simple random sample
D) a cluster sample
E) a multistage sample
Question
A simple random sample experiment is repeated four times choosing the same sample size each time. Which of the following statements can be made about the different outcomes?

A) The samples will usually be different from one another.
B) The samples will always be the same.
C) Measurements calculated from the samples will always be different.
D) The samples will always be different from one another.
E) Measurements calculated from the samples will always be the same.
Question
The National Capital Commission recently did a quality check on the length of fence posts being installed in a new park area. To do this, each of the 400 posts in inventory was numbered. Twenty numbers from 1 and 400 were randomly selected. These 20 poles were the ones selected for the study. This type of sampling is called

A) simple random sampling
B) convenience sampling
C) cluster sampling
D) stratified sampling
E) non-statistical sampling
Question
In order to estimate a parameter (such as the mean) of a population you would need which of the following?

A) sample
B) population
C) census
D) cluster
E) pilot test
Question
An attribute of a sample is called a

A) parameter
B) statistic
C) real number
D) integer
E) census
Question
An attribute of a population is called

A) a statistic
B) a parameter
C) a census
D) a real number
E) an integer
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Deck 3: Surveys and Sampling
1
Consider the following to answer the question(s) below.
ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a sample of their regular customers.
Suppose that ASW's regular customers belong to a rewards program and have a customer rewards ID number. ASW decides to randomly select 100 numbers. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
A
2
Two of the questions asked in the survey of employees are shown below.
• Since exercise is so important to good health, would you be willing to participate in organized walks during lunch hour?
• Would you attend a "low fat cooking" demonstration?
a. Are these questions valid (appropriately worded)? Explain.
b. Which question is more neutral? Explain.
a. The first question is "leading" the respondent to answer yes and therefore is not quite appropriately worded.
b. The second question is more neutral because it does not lead to a yes response.
3
All regular ASW customers is known as the ________ of the study.

A) parameter
B) statistic
C) target population
D) sampling frame
E) sample
C
4
ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a random sample of their regular customers. Under consideration are several plans for selecting the sample. Name the sampling strategy for each.
a. Regular customers belong to a rewards program and have a customer rewards ID number. Randomly select 100 numbers.
b. ASW has stores in five different cities in Canada. Randomly select one of the stores and survey all regular customers that belong to its rewards program.
c. ASW has an alphabetized list of regular customers who belong to their rewards program. After randomly selecting a customer on the list, every 25th customer from that point on is chosen to be in the sample.
d. Customers who belong to the rewards program are grouped into four age categories (under 21, 21 to 35, 36 to 50, and over 50). Randomly select 10 regular customers in each age category.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
5
Which of the following survey questions is leading?

A) Given the prevalence of identity theft, are you reluctant to provide credit card information online?
B) Are you confident that any information you provide online is secure?
C) Are you concerned about the security of online transactions?
D) Both A and B
E) Both B and C
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
6
A consumer research group is interested in how older drivers view hybrid cars. Specifically, they wish to assess the percentage of drivers in Canada, 50 years of age or older who intend to purchase a hybrid in the next two years. Suppose that a list of CARP (Canadian Association of Retired Persons) members is used as the sampling frame. Based on a systematic sample, they estimated the percentage to be 17%.
a. Define the target population.
b. Define the parameter.
c. What is the statistic?
d. How might the results be biased?
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
7
Which of the following is the parameter of interest in the ASW study?

A) all regular ASW customers
B) % of regular ASW customers who have concerns about online security
C) ASW customers who belong to the rewards program
D) % of ASW customers who belong to the rewards program that don't shop online
E) none of the above
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
8
Which of the following statements about this study is false?

A) Most likely, 17% of those sampled intend to purchase a hybrid in the next two years.
B) Systematic random sampling is a valid sampling technique
C) 17% is a statistic.
D) 17% of all Canadian drivers 50 years of age or older intend to purchase a hybrid in the next two years.
E) None of the statements given in the set of possible answers are false.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
9
In developing and conducting a survey, what is the purpose of the pilot test phase?

A) To demonstrate flaws in the survey
B) To generate initial data to analyze
C) To determine the cost of the survey
D) To make sure that the respondents like the questions
E) To determine if the results can be predicted
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
10
Consider the following to answer the question(s) below.
A consumer research group is interested in how older drivers view hybrid cars. Specifically, they wish to assess the percentage of drivers in Canada 50 years of age or older who intend to purchase a hybrid in the next two years. Suppose that they selected a systematic sample from a list of CARP (Canadian Association of Retired Persons) members. Based on this sample, they estimated the percentage to be 17%.
The sampling frame for this study is

A) All drivers in Canada 50 years of age or older
B) 17%
C) The list of CARP members
D) How older drivers view hybrid cars
E) 83%
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
11
Two of the questions asked in the survey of customers are shown below.
• Given the prevalence of identity theft, are you reluctant to provide credit card information online?
• Are you confident that any information you provide online is secure?
a. Are these questions valid (appropriately worded)? Explain.
b. Which question is more neutral? Explain.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
12
One member of the management team at ASW suggests that their survey could be conducted online. Customers logging on to the online store would be asked to take a few minutes to complete the survey and would be offered a coupon as incentive to participate. Which of the following statements is true?

A) This is a voluntary response sample.
B) This would result in an unbiased random sample.
C) This would result in a biased sample.
D) Both A and B
E) Both A and C
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
13
In conducting a personal interview, the interviewer is allowed to arbitrarily decide who should be interviewed. Which of the following statements is true?

A) This is a biased sample.
B) This is a voluntary response sample.
C) This is a simple random sample.
D) This is an unbiased sample
E) This is a representative sample.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
14
Suppose the administration decides to do the following. At a Starbucks located on campus, every tenth person who enters on a Monday morning is selected to be surveyed. Explain why this may be biased.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
15
Consider the following to answer the question(s) below.
The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. To do this, they plan to survey a sample of their employees.
Suppose that the university randomly selects a school (e.g., the Business School) and surveys all of the individuals (administration, faculty, professional staff, clerical, and maintenance) who work in that school. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
16
One member of the management team at ASW suggests that their survey could be conducted online. Customers logging on to the online store would be asked to take a few minutes to complete the survey and would be offered a coupon as incentive to participate. Explain how this approach might be biased.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
17
In the ASW study described above,
a. Define the target population.
b. Define the parameter.
c. What is the sampling frame?
d. How might the results be biased?
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
18
Consider the following to answer the question(s) below.
ASW, a regional shoe chain, has recently launched an online store. Sales via the Internet have been sluggish compared to their brick and mortar stores, and management suspects that its regular customers have concerns regarding the security of online transactions. To determine if this is the case, they plan to survey a sample of their regular customers.
Suppose that ASW has an alphabetized list of regular customers who belong to their rewards program. After randomly selecting a customer on the list, every 25th customer from that point on is chosen to be in the sample. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
19
Consider the following to answer the question(s) below.
The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. To do this, they plan to survey a sample of their employees.
Suppose that there are five categories of employees (administration, faculty, professional staff, clerical, and maintenance) and the university decides to randomly select ten individuals from each category. This sampling plan is called

A) Simple Random Sampling
B) Stratified Sampling
C) Cluster Sampling
D) Systematic Sampling
E) Convenience Sampling
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
20
The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. To do this, they plan to survey a random sample of employees. Under consideration are several plans for selecting the sample. Name the sampling strategy for each.
a. There are five categories of employees (administration, faculty, professional staff, clerical, and maintenance). Randomly select ten individuals from each category.
b. Each employee has an ID number. Randomly select 50 numbers.
c. Randomly select a school within the university (e.g., Business School) and survey all of the individuals (administration, faculty, professional staff, clerical and maintenance) who work in that school.
d. The HR Department has an alphabetized list of newly hired employees (hired within the last five years). After starting the process by randomly selecting an employee from the list, then every 5th name is chosen to be included in the sample.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
21
When a tax auditor randomly selects 20 accounts from all the accounts of a business to check for accuracy, she has selected

A) a sample from a population
B) a census
C) a convenience sample
D) a biased sample
E) a stratified sample
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
22
A professor hands out survey forms to the students in her own classes. If the population is all students attending the university, this is an example of

A) a convenience sample
B) a random sample
C) a stratified sample
D) a census
E) an unbiased sample
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
23
An Internet service provider has the capability of tracking the time that each of its customers spends connected to the Internet during a month. These data would constitute

A) a population
B) a convenience sample
C) a simple random sample
D) a cluster sample
E) a multistage sample
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
24
A simple random sample experiment is repeated four times choosing the same sample size each time. Which of the following statements can be made about the different outcomes?

A) The samples will usually be different from one another.
B) The samples will always be the same.
C) Measurements calculated from the samples will always be different.
D) The samples will always be different from one another.
E) Measurements calculated from the samples will always be the same.
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
25
The National Capital Commission recently did a quality check on the length of fence posts being installed in a new park area. To do this, each of the 400 posts in inventory was numbered. Twenty numbers from 1 and 400 were randomly selected. These 20 poles were the ones selected for the study. This type of sampling is called

A) simple random sampling
B) convenience sampling
C) cluster sampling
D) stratified sampling
E) non-statistical sampling
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
26
In order to estimate a parameter (such as the mean) of a population you would need which of the following?

A) sample
B) population
C) census
D) cluster
E) pilot test
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
27
An attribute of a sample is called a

A) parameter
B) statistic
C) real number
D) integer
E) census
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
28
An attribute of a population is called

A) a statistic
B) a parameter
C) a census
D) a real number
E) an integer
Unlock Deck
Unlock for access to all 28 flashcards in this deck.
Unlock Deck
k this deck
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Unlock Deck
Unlock for access to all 28 flashcards in this deck.