AnswersVA-Probability and StatisticsOther Sampling Methods

Other Sampling Methods Answers

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1
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An employer wants to determine the amount of job satisfaction experienced by his employees. Which sampling method is most likely to result in undercoverage?

A
Employees work one of three shifts: day, evening, or night. Randomly select 20 employees from each shift.
B
Employees are assigned identification numbers. Randomly select 60 identification numbers.
C
Employees are assigned to one of four pay scales. Randomly select a pay scale and survey every employee in that pay scale.
D
The employee roster is listed in alphabetical order. Select every 5th employee from the roster.
2
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Read each scenario and choose the type of bias that is exhibited.

A
nonresponse
B
response
C
undercoverage
D
no
3

An employer wants to determine the amount of job satisfaction experienced by his employees. Employees are assigned to one of four pay scales. Each employee from the top two pay scales are chosen for the sample. Select the statement that best describes the result of the undercoverage bias.

A
There is no undercoverage bias.
B
The undercoverage bias will likely overestimate the inferred job satisfaction for the population.
C
The undercoverage bias will likely underestimate the inferred job satisfaction for the population.
D
The undercoverage bias will likely reflect the inferred job satisfaction correctly for the population.
4

A university wants to survey students to gather opinions regarding a tuition increase for their online degree programs. A sample is collected by stationing employees at high traffic areas near the student center to administer the survey to passing students. Select the statement that best describes the result of the nonresponse bias.

A
There is no nonresponse bias.
B
The nonresponse bias will likely underestimate the approval percentage for the online tuition increase for the population.
C
The nonresponse bias will likely overestimate the approval percentage for the online tuition increase for the population.
D
The nonresponse bias will likely reflect the correct approval percentage for the online tuition increase for the population.
5

A restaurant wants to determine how much their customers like the dinner specials prepared by the new restaurant chef. Which survey method is most likely to lead to response bias?

A
Leave survey sheets on each table for customers to complete after their dining experience.
B
Create a survey and post it on the restaurant’s social media page.
C
Mail a survey to all households in a 10-mile radius of the restaurant.
D
Create a survey that is administered by the waitstaff prior to the customer leaving the restaurant.
6

A company that provides a free online language course wants to determine if learners would be willing to pay $12 per month for a premium version of the course. Which questions might lead to question wording bias? Check all that apply.Do you think $12 is too much to pay for a premium version of the course?What amount would you expect to pay for a premium version of the course?Would you pay $12 for a premium version of the course, given that learning a language has been shown to improve concentration skills and memory?Would you pay $12 for a premium version of the course even though it is currently free?What is the most you would pay for a premium version of the course?

A
Do you think $12 is too much to pay for a premium version of the course?
B
What amount would you expect to pay for a premium version of the course?
C
Would you pay $12 for a premium version of the course, given that learning a language has been shown to improve concentration skills and memory?
D
Would you pay $12 for a premium version of the course even though it is currently free?
E
What is the most you would pay for a premium version of the course?
7

A company that provides a free online language course wants to determine if learners would be willing to pay $12 per month for a premium version of the course. They ask the question, "Do you think $12 is too much too pay for a premium version of the course?” Select the statement that best describes the probable result of the question wording bias.

A
There is no question wording bias.
B
The question wording bias will likely overestimate the number of people willing to pay $12 per month for a premium version of the course.
C
The question wording bias will likely underestimate the number of people willing to pay $12 per month for a premium version of the course.
D
The question wording bias will likely reflect the correct number of people willing to pay $12 per month for a premium version of the course.
8

Read each scenario and choose the type of bias that is exhibited.

A
nonresponse
B
response
C
undercoverage
D
no
9

Read each scenario and choose the type of bias that is exhibited.

A
nonresponse
B
response
C
undercoverage
D
no
10

Read each scenario and choose the type of bias that is exhibited.

A
nonresponse
B
response
C
undercoverage
D
no

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