Question 1

SCENARIO 1-3
The manager of the customer service division of a major consumer electronics company is interested
in determining whether the customers who have purchased a Blu-ray player made by the company
over the past 12 months are satisfied with their products.
-Referring to Scenario 1-3, which of the following questions in the survey will NOT likely
Induce a measurement error?

Accepted Answer

The question about the number of times the Blu-ray player was brought back for service is factual and specific, reducing the likelihood of measurement error.

Question 2

SCENARIO 1-3
The manager of the customer service division of a major consumer electronics company is interested
in determining whether the customers who have purchased a Blu-ray player made by the company
over the past 12 months are satisfied with their products.
-Referring to Scenario 1-3, the manager decides to ask a sample of customers, who have bought
A Blu-ray player made by the company and filed a complaint over the past year, to fill in a survey
About whether they are satisfied with the product.This method will most likely suffer from

Accepted Answer

The method will likely suffer from coverage error because it only includes customers who have filed a complaint, thus not representing the entire population of Blu-ray player purchasers.

Question 3

True or False: Selection bias occurs more frequently in systematic samples than in simple
random samples.

Accepted Answer

Selection bias is more likely in systematic samples because the method of selecting every nth item can introduce patterns that do not represent the entire population, whereas simple random sampling gives each member an equal chance of being selected, reducing bias.

Question 4

True or False: The question "How many times have you abused illicit drugs in the last 6
months?" will most likely result in nonresponse error.

Accepted Answer

This question is sensitive and personal, which may lead respondents to skip it or provide inaccurate answers due to privacy concerns or fear of judgment.

Question 5

True or False: The only way one can eliminate sampling error is to take the whole population
as the sample.

Accepted Answer

Sampling error is the difference between a sample statistic and the actual population parameter, and it can be eliminated by using the entire population as the sample, leaving no room for error.

Question 6

True or False: To gather opinions on the efficacy of U.S.foreign policies, a sample of 50
faculty members is selected from the pool of university professors who have taught political
science at the graduate level.This is an example of a judgment sample.

Accepted Answer

A judgment sample involves selecting subjects based on the judgment of the researcher, in this case, choosing faculty members who have taught political science at the graduate level.

Question 7

SCENARIO 1-3
The manager of the customer service division of a major consumer electronics company is interested
in determining whether the customers who have purchased a Blu-ray player made by the company
over the past 12 months are satisfied with their products.
-Referring to Scenario 1-3, if there are 4 different brands of Blu-ray players made by the
Company, the best sampling strategy would be to use a

Accepted Answer

A stratified sample would ensure that each brand of Blu-ray player is represented in the sample, allowing for a more accurate assessment of customer satisfaction across different brands.

Question 8

True or False: The question "Is your household income last year somewhere between $50,000
and $100,000?" will most likely result in coverage error.

Accepted Answer

Coverage error occurs when some members of the population are inadequately represented in the sample. The question itself does not cause coverage error; it is the sampling method that might lead to such an error.

Question 9

True or False: Coverage error can become an ethical issue if a particular group is intentionally
excluded from the frame.

Accepted Answer

Coverage error becomes an ethical issue when a specific group is intentionally excluded, as it can lead to biased results and unfair representation.

Question 10

True or False: An electronic appliance chain gathered customer opinions on their services
using the customer feedback forms that are attached to the product registration forms.This is an
example of a convenience sample.

Accepted Answer

This is a convenience sample because it involves collecting data from customers who have already registered their products, making it easy and convenient to gather feedback from this specific group.

Question 11

True or False: The question: "Have you used any form of illicit drugs over the past 2 months?"
will most likely result in measurement error if the question is answered.

Accepted Answer

Measurement error can occur due to social desirability bias, recall bias, or misunderstanding of the question, leading to inaccurate responses.

Question 12

SCENARIO 1-3
The manager of the customer service division of a major consumer electronics company is interested
in determining whether the customers who have purchased a Blu-ray player made by the company
over the past 12 months are satisfied with their products.
-Referring to Scenario 1-3, if a customer survey questionnaire is included in all the Blu-ray
Players made and sold by the company over the past 12 months, this method of collecting data
Will most like suffer from

Accepted Answer

Including a survey in all products may lead to nonresponse error, as not all customers will return the survey, resulting in a biased sample.

Question 13

True or False: Measurement error will become an ethical issue when the findings are presented
without reference to sample size and margin of error.

Accepted Answer

The answer of True or False: Measurement error will become...

Question 14

True or False: In a business statistics class students sit randomly without particular preferences.
A sample is selected by including everybody who sits in the first row.This is an example of a
cluster sample.

Accepted Answer

A cluster sample is a type of sampling in which the population is divided into groups (clusters), and then a sample of clusters is selected. In this case, the clusters are the rows of students, and the sample is selected by including everybody who sits in the first row. This is an example of a cluster sample because the sample is selected based on the clusters (rows) rather than on individual students.

Question 15

True or False: Measurement error can become an ethical issue when a survey sponsor chooses
leading questions that guide the responses in a particular direction.

Accepted Answer

Measurement error becomes an ethical issue when survey sponsors use leading questions to intentionally influence responses, compromising the integrity and objectivity of the data collected.

Question 16

True or False: The professor of a business statistics class wanted to find out the mean amount of
time per week her students spent studying for the class.She divided the fifty students on her
roster into ten groups starting from the first student on the roster.The first student was randomly
selected from the first group.Then every tenth student was selected from the remaining students.
This is an example of a cluster sample.

Accepted Answer

This is an example of a systematic sample, not a cluster sample. In a systematic sample, every nth element is selected from a list, whereas a cluster sample involves dividing the population into clusters and then randomly selecting entire clusters.

Question 17

True or False: Measurement error can become an ethical issue when an interviewer purposely
guides the responses in a particular direction.

Accepted Answer

When an interviewer intentionally influences responses, it introduces bias, compromising the integrity of the data and violating ethical standards.

Question 18

True or False: The question: "How much did you earn last year rounded to the nearest hundreds
of dollars?" will most likely result in measurement error.

Accepted Answer

Measurement error can occur because respondents may not accurately remember or calculate their earnings, leading to imprecise or incorrect answers.

Question 19

True or False: The professor of a business statistics class wanted to find out the mean amount of
time per week her students spent studying for the class.She divided the students into the left,
right and center groups according to the location they sat in the class that day.One of these 3
groups was randomly selected and everyone in the group was asked the mean amount of time per
week he/she spent studying for the class.This is an example of a cluster sample.

Accepted Answer

In a cluster sample, the population is divided into groups (clusters), and a random selection of entire groups is made. Here, the class is divided into seating location groups, and one entire group is randomly selected for the survey.

Question 20

True or False: Sampling error becomes an ethical issue if the findings are purposely presented
without reference to sample size and margin of error so that the sponsor can promote a viewpoint
that might otherwise be truly insignificant.

Accepted Answer

Sampling error becomes an ethical issue when findings are misrepresented or manipulated to support a biased viewpoint, misleading stakeholders about the significance of the results.

Quiz 1: Defining and Collecting Data

True or False: Selection bias occurs more frequently in systematic samples than in simple random samples.

True or False: The question "How many times have you abused illicit drugs in the last 6 months?" will most likely result in nonresponse error.

True or False: The only way one can eliminate sampling error is to take the whole population as the sample.

True or False: To gather opinions on the efficacy of U.S.foreign policies, a sample of 50 faculty members is selected from the pool of university professors who have taught political science at the graduate level.This is an example of a judgment sample.

True or False: The question "Is your household income last year somewhere between $50,000 and $100,000?" will most likely result in coverage error.

True or False: Coverage error can become an ethical issue if a particular group is intentionally excluded from the frame.

True or False: An electronic appliance chain gathered customer opinions on their services using the customer feedback forms that are attached to the product registration forms.This is an example of a convenience sample.

True or False: The question: "Have you used any form of illicit drugs over the past 2 months?" will most likely result in measurement error if the question is answered.

True or False: Measurement error will become an ethical issue when the findings are presented without reference to sample size and margin of error.

True or False: In a business statistics class students sit randomly without particular preferences. A sample is selected by including everybody who sits in the first row.This is an example of a cluster sample.

True or False: Measurement error can become an ethical issue when a survey sponsor chooses leading questions that guide the responses in a particular direction.

True or False: Measurement error can become an ethical issue when an interviewer purposely guides the responses in a particular direction.

True or False: The question: "How much did you earn last year rounded to the nearest hundreds of dollars?" will most likely result in measurement error.

True or False: Sampling error becomes an ethical issue if the findings are purposely presented without reference to sample size and margin of error so that the sponsor can promote a viewpoint that might otherwise be truly insignificant.