Deck 8: Data Sources: Observational Studies and Surveys

Question 1

Management at a large multinational corporation would like to survey its employees about the level of interest in combining flexible work schedules with telecommuting from home.The HR Department has an alphabetized list of newly hired employees (hired within the last year).After starting the process by randomly selecting an employee from the list, then every 5^th name is chosen to be included in the sample.This sampling plan is called ________________________ .

A)Simple Random Sampling
B)Stratified Sampling
C)Cluster Sampling
D)Systematic Sampling
E)Convenience Sampling

Answer 1

Systematic Sampling

Question 2

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, they plan to survey a random sample of their regular customers.All regular Molly's Reach customers is known as the ________ of the study.

A)parameter
B)statistic
C)target population
D)sampling frame
E)sample

Answer 2

target population

Question 3

The online MBA director at a large business school surveys a sample of current students to determine their level of satisfaction with the program.She finds that 67% are "very satisfied" with the online program.This is a ________________________ .

A)parameter
B)statistic
C)target population
D)sampling frame
E)good result

Answer 3

statistic

Question 4

A consumer research group is interested in how older drivers view hybrid cars.Specifically, they wish to assess the percentage of drivers in the U.S.50 years of age or older who intend to purchase a hybrid in the next two years.They selected a systematic sample from a list of AARP (American 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 the U.S.50 years of age or older
B)17%
C)the list of AARP members
D)how older drivers view hybrid cars
E)none of the above

Question 5

The administration of a large university is interested in learning about the types of wellness programs that would interest its 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 6

The administration of a large university is interested in learning about the types of wellness programs that would interest its 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 7

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, they plan to survey a random sample of their regular customers.One member of the management team at Molly's Reach 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 8

The main ideas of sampling do not include ________________________ .

A)sample size matters
B)examine a part of the whole
C)the fraction of the larger population determines the precision of the resulting statistics
D)randomization
E)all ideas of sampling should be included

Question 9

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, they plan to survey a random sample of their regular customers.Which of the following is the parameter of interest in the Molly's Reach study?

A)all regular Molly's Reach customers
B)% of regular Molly's Reach customers who have concerns about online security
C)Molly's Reach customers who belong to the rewards program
D)% of Molly's Reach customers who belong to the rewards program that don't shop online
E)none of the above

Question 10

More dogs are being diagnosed with thyroid problems than have been diagnosed in the past.A researcher identified 50 puppies without thyroid problems and kept records of their diets for several years to see if any developed thyroid problems.This is a(n)________________________ .

A)blocked experiment
B)randomized experiment
C)prospective study
D)survey
E)retrospective study

Question 11

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 12

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, they plan to survey a random sample of their regular customers.Suppose that Molly's Reach 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 13

A women's advocacy group believes that there is gender discrimination in the financial services industry.One member of the group, a financial analyst, offers to survey a sample of women at her company about this issue.Which of the following statements is true about the proposed study?

A)It involves a stratified sample that is representative of the population.
B)It involves a simple random sample that is representative of the population.
C)It involves a convenience sample and may not be representative of the population.
D)It will result in unbiased data.
E)It involves taking a census of the target population.

Question 14

The HR department of a large company wants to determine how often to bring representatives from the financial firm managing employee pensions on site to meet with individuals about their retirement plans.In order to determine level of interest, they decide to survey employees.Suppose they group employees by age categories (e.g., under 30; 30 - under 45; 45 - under 60, 60 or older) and randomly select 50 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 15

Shortly after the Sandy Hook Elementary School shooting in December 2012, a local television news program asked viewers to call in with their opinion about gun control.These results were likely biased because ________________________ .

A)of a bad sampling frame
B)of an undefined target population
C)leading questions
D)of a voluntary response sample
E)of measurement error

Question 16

Management at a large multinational corporation would like to survey its employees about the level of interest in combining flexible work schedules with telecommuting from home.Which of the following is the parameter of interest in this study?

A)All employees at the corporation.
B)Percentage of employees who are interested in combining flexible work schedules with telecommuting from home.
C)Employees who work overtime.
D)Percentage of employees who do not have a computer at home.
E)None of the above

Question 17

From July to September, 2013, the Pew Research Center for the People & the Press carried out a national survey to determine use of social networking by African American internet users.It found that 73% used a social networking of some kind.This is a ________________________ .

A)statistic
B)parameter
C)target population
D)sampling frame
E)census

Question 18

A consumer research group is interested in how older drivers view hybrid cars.Specifically, they wish to assess the percentage of drivers in the U.S.50 years of age or older who intend to purchase a hybrid in the next two years.They selected a systematic sample from a list of AARP (American Association of Retired Persons) members.Based on this sample, they estimated the percentage to be 17%.Which of the following statements about this study is true?

A)17% of all U.S.drivers 50 years of age or older intend to purchase a hybrid in next two years.
B)17% is a parameter.
C)17% is a statistic.
D)Both A and B
E)Both A and C

Question 19

Management at a large multinational corporation would like to survey its employees about the level of interest in combining flexible work schedules with telecommuting from home.Each employee has an ID number, and the administration plans to randomly select 250 numbers.This sampling plan is called ________________________ .

A)Simple Random Sampling
B)Stratified Sampling
C)Cluster Sampling
D)Systematic Sampling
E)Convenience Sampling

Question 20

Molly's Reach, a regional restaurant and gift shop, has recently launched an increased sales campaign, particularly focused on their gift shop.To determine if their proposal is of interest, they plan to survey a random sample of their regular customers.Suppose that Molly's Reach's regular customers belong to a rewards program and have a customer rewards ID number.Molly's Reach 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

Question 21

A researcher identified 100 men over forty who were not exercising and another 100 men over forty with similar medical histories who were exercising regularly.She followed all the men for several years to see if there was any difference between the two groups in the rate of heart attacks.This is a(n) ________________________ .

A)retrospective study
B)matched pairs experiment
C)randomized experiment
D)survey
E)prospective study

Question 22

If you open a new department store, reasons not to survey all of the area residents to understand their needs would not include ________________________ .

A)difficulty accessing the entire population
B)cost
C)bias
D)time consuming
E)all reasons should be included

Question 23

The HR department of a large company wants to determine how often to bring representatives from the financial firm managing employee pensions on site to meet with individuals about their retirement plans.In order to determine level of interest, they decide to survey employees.Suppose they select one department (e.g., Sales) and survey all employees within that department.This sampling plan is called ________________________ .

A)Simple Random Sampling
B)Stratified Sampling
C)Cluster Sampling
D)Systematic Sampling
E)Convenience Sampling