01
True or false
1 point
A business discovers that its customer survey excludes people without email addresses. Increasing the number of responses from the same email-only sampling frame will remove the resulting coverage problem. True or false?
Free Practice Quiz Question List
2 Data Collection and Quality Online Quiz Questions
Use this free practice quiz with 20 questions to review 2 Data Collection and Quality, test your knowledge, and prepare for your next test or exam.
20 questions
02
Written response
1 point
A retailer wants to learn about all its customers, but its survey invitation list includes only customers who provided an email address. What sampling problem may result because some customers cannot be reached through the frame?
03
Fill in the blank
1 point
When checking whether a dataset contains all records and fields needed for an analysis, the relevant data quality dimension is .
04
Choose one
1 point
A business wants context on market-wide trends that its own customers may not reveal. Which source is most appropriate to investigate first?
- A
The company’s customer-service records
- B
An industry report covering the wider market
- C
The company’s website activity
- D
The company’s employee records
05
Choose one
1 point
A survey asks, “How satisfied are you with the price and quality of our service?” What is the best way to improve this question?
- A
Keep the question as written because both ideas concern the service.
- B
Separate it into one question about price and another about service quality.
- C
Replace “price and quality” with “overall service” without testing the wording.
- D
Ask respondents to answer only about whichever idea they prefer.
06
Written response
1 point
A retailer defines “repeat purchase” as a second completed order within 90 days. What is this precise specification of how a concept is measured called?
07
Fill in the blank
1 point
A manager checks whether a dataset can answer the business decision being considered. This check assesses the dataset’s .
08
Choose all
1 point
Which methods are examples of probability sampling? Select all correct answers.
- A
Simple random sampling
- B
A voluntary online poll
- C
Stratified sampling
- D
A convenience sample of people nearby
09
Choose one
1 point
A retailer wants to examine repeat purchases among its existing customers using information it already holds. Which source best fits this purpose?
- A
A research study commissioned by another organization
- B
A government statistics release
- C
The company’s own sales transaction records
- D
A supplier’s industry-wide market report
10
Written response
1 point
A team documents who collected a dataset, when it was collected, which people it covers, and how it was gathered. What is this descriptive information called?
11
Choose all
1 point
A retailer is assessing sales data before making a stock decision for its stores. Which checks would help determine whether the dataset is fit for that decision? Select all correct answers.
- A
Check whether the information is current enough for the stock decision.
- B
Check whether the data cover the stores and products the decision concerns.
- C
Remove a store’s records whenever its results look unusual.
- D
Document the methods, definitions, and limitations so results can be understood.
12
True or false
1 point
Removing direct identifiers from a dataset guarantees that individuals cannot be identified, even if the remaining details can be linked with other information. True or false?
- A
True
- B
False
13
Choose one
1 point
A business has finished the work for which it collected personal information, and the information is no longer needed. What should it do?
- A
Securely dispose of the information when it is no longer needed.
- B
Keep it indefinitely in case it might become useful.
- C
Make it available to all employees for possible future analysis.
- D
Continue collecting similar information to replace it, regardless of need.
14
Open ended
1 point
A business plans a survey to estimate customer satisfaction and use the results to guide a service decision. Describe a practical approach to defining the population, selecting participants, measuring satisfaction, handling personal information responsibly, and reporting limitations.
15
Choose one
1 point
A business asks, “How satisfied are you with the price and quality of our service?” What is the best way to improve this survey item?
- A
Keep the question because both topics concern the same service.
- B
Separate it into one question about price and another about service quality.
- C
Replace the question with a yes-or-no question about overall satisfaction.
- D
Remove all response choices so respondents can answer in their own words.
16
True or false
1 point
A voluntary online poll can be treated as representative of a business’s entire customer population as long as many people respond.
- A
True
- B
False
17
Choose one
1 point
A retailer wants to estimate satisfaction among all customers who shopped last month, but it draws its survey sample only from customers with email addresses. What is the main sampling risk?
- A
Nonresponse bias, because every customer who receives an email has declined to answer.
- B
Measurement error, because satisfaction cannot be measured with a survey.
- C
Undercoverage, because some members of the population are missing from the frame.
- D
A complete census, because all customers in the email list are contacted.
18
Written response
1 point
A company defines “repeat purchase” as a second completed order within 90 days. What measurement term describes this precise rule for obtaining a measure?
19
Choose one
1 point
A scale gives the same reading every time the same object is weighed, but it is consistently miscalibrated. How should its measurement quality be described?
- A
It is valid and reliable because the readings are consistent.
- B
It is reliable but invalid because its readings are repeatable but wrong.
- C
It is valid but unreliable because the readings are wrong in the same way.
- D
It is neither valid nor reliable because all measurement tools have error.
20
Choose one
1 point
A retailer deciding which products to stock next month has customer-preference data that directly address the decision, but the data are several years old. Which assessment best distinguishes the relevant quality dimensions?
- A
The dataset is relevant to the decision but may not be timely enough.
- B
The dataset is timely but irrelevant because it concerns the business’s own customers.
- C
The dataset is complete, which means it must also be accurate.
- D
The dataset is reliable because it was collected before the decision was made.