Business Analytics exam questions and
correct answers
• Semi-structured data:
- answers-data collected from social media or digital devices.
• Structured data:
- answers-data contained in relational databases and data table.
• Unstructured data:
- answers-data collected from voice, video, or picture.
2. A few of the variables for which data were collected in the Pew Internet & Life Project
study about online shopping include age, gender, income, and number of hours spent
shopping online per month. Which of the variables is categorical?
- answers-Gender
3. The Pew Internet & Life Project study about online shopping asked respondents to
indicate their education level on the following scale: Less than High School, High
School, Some College, College+. Which of the following statement is (are) true?
- answers-Educational level is a categorical variable and education level is ordinal
scaled.
4. A university is interested in gauging student satisfaction in its online MBA program. A
survey is designed and administered via the Internet to a sample of students currently
active in the program. Which of the following would best describe the cases?
- answers-Respondents
5. A locally owned spa, Alexander's, is interested in adding a team room that not only
offers specialty teas but an organic lunch menu. In order to determine how many of its
regular customers would be interested in such an addition, Alexander's sent out a short
email questionnaire. The source of these data is
- answers-a designed survey
6. The main ideas of sampling do not include
- answers-the fraction of the larger population determines the precision of the resulting
statistics.
7. 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
- answers-Stratified sampling
8. 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.
- answers-Systematic sampling
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.
One member of the management team at Molly's Reach suggest 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?
- answers-this is a voluntary response sample
this would result in a biased sample
A regional survey was carried out to gauge public opinion on the controversial Arizona
Immigration Law. How many respondents are Republican and favor the law?
Democrat Republican Independent
Favor-50-93-35
Oppose 85-45-60
Dont know5-7-20
- answers-93
A restaurant uses comment card to get feedback from its customers about newly added
items to the menu. It recently introduced homemade organic veggie burgers. Customers
who tried the new burger were asked if they would order it again. The data are
summarized in the table below. What percentage of customers would definitely order
the veggie burger again?
Definitely would--10%
Most likely would--40%
Maybe--12%
Definitely would not--3%
- answers-15%
A restaurant uses comment card to get feedback from its customers about newly added
items to the menu. It recently introduced homemade organic veggie burgers. Customers
who tried the new burger were asked if they would order it again. Which of the following
would be an appropriate method for displaying the data shown in the table?
correct answers
• Semi-structured data:
- answers-data collected from social media or digital devices.
• Structured data:
- answers-data contained in relational databases and data table.
• Unstructured data:
- answers-data collected from voice, video, or picture.
2. A few of the variables for which data were collected in the Pew Internet & Life Project
study about online shopping include age, gender, income, and number of hours spent
shopping online per month. Which of the variables is categorical?
- answers-Gender
3. The Pew Internet & Life Project study about online shopping asked respondents to
indicate their education level on the following scale: Less than High School, High
School, Some College, College+. Which of the following statement is (are) true?
- answers-Educational level is a categorical variable and education level is ordinal
scaled.
4. A university is interested in gauging student satisfaction in its online MBA program. A
survey is designed and administered via the Internet to a sample of students currently
active in the program. Which of the following would best describe the cases?
- answers-Respondents
5. A locally owned spa, Alexander's, is interested in adding a team room that not only
offers specialty teas but an organic lunch menu. In order to determine how many of its
regular customers would be interested in such an addition, Alexander's sent out a short
email questionnaire. The source of these data is
- answers-a designed survey
6. The main ideas of sampling do not include
- answers-the fraction of the larger population determines the precision of the resulting
statistics.
7. 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
- answers-Stratified sampling
8. 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.
- answers-Systematic sampling
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.
One member of the management team at Molly's Reach suggest 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?
- answers-this is a voluntary response sample
this would result in a biased sample
A regional survey was carried out to gauge public opinion on the controversial Arizona
Immigration Law. How many respondents are Republican and favor the law?
Democrat Republican Independent
Favor-50-93-35
Oppose 85-45-60
Dont know5-7-20
- answers-93
A restaurant uses comment card to get feedback from its customers about newly added
items to the menu. It recently introduced homemade organic veggie burgers. Customers
who tried the new burger were asked if they would order it again. The data are
summarized in the table below. What percentage of customers would definitely order
the veggie burger again?
Definitely would--10%
Most likely would--40%
Maybe--12%
Definitely would not--3%
- answers-15%
A restaurant uses comment card to get feedback from its customers about newly added
items to the menu. It recently introduced homemade organic veggie burgers. Customers
who tried the new burger were asked if they would order it again. Which of the following
would be an appropriate method for displaying the data shown in the table?
