C207 OA Prep Quiz 1-6 Comprehensive Review Guide | Accurate & Verified Answers to
Pass Actual Exam
C207 OA Prep- Quiz 1-6 Review
Section 1
1. For companies to attract and retain their best customers, they need a
complete portrait of who they are. To develop this portrait companies turn to
analytics
2. A manufacturer wants to maximize their factory output while specifically
minimizing labor costs. Which type of analytics might they employ to achieve
this goal?
Prescriptive analytics
3. Which type of data error that occurs in measurement is constant within a
data set and is sometimes caused by faulty equipment or bias? Systematic
4. An educator develops a new standardized test to measure math skills of
ninth graders. She has students in her home state of Ohio take the test. If
the test is to be used on a national level, which type of error might be found
in her data? Measurement bias
5. A city government is trying to determine the national origins of its recent
immigrant population. If a survey of the immigrant population is conducted
in English, which type of error might be present in the data? Omission
6. The use of big data is increasingly important to businesses in competitive
markets. Which of the following characteristics is not true of big data?
Can be analyzed with traditional spreadsheets
7. The Davenport-Kim three-stage model consists of framing the problem,
solving the problem, and communicating results. Which two of the following
are part of framing the problem stage? Determine the scope of the
problem, Review of previous findings
8. A healthcare provider is researching blood glucose levels before and after
exercising. Which two elements should be part of any experimental study
such as this?
Treatment procedures, Experimental response
9. Runners cover 26.2 miles in the Olympics marathon. Which level of
measurement is this? Ratio
10. Which level of measurement is the type of cars produced in a Ford
factory? Nominal
, 11. Which level of measurement is the 10 best cities in the U.S. to retire in?
Ordinal
12. Which level of measurement are women’s dress sizes (0, 2, 4, 6, etc.)?
Interval
13. A local school board is studying the impact of a proposed change in
testing on math scores. Bias can be introduced into the study by both
students and teachers. Which research technique would eliminate this type
of bias? Double-blind study
14. A company’s product development team test three new car waxes by
waxing five cars with each wax and then running them through a car wash.
They then record number of washes it takes before the wax begins to
deteriorate. What is the term for the five cars?
The experimental unit
Section 2
1. An online retailer selling workout apparel has a large increase in sales
during December and declares that their weekly newspaper ad resulted in
higher sales. Which misuse of statistics may the retailer have used in making
this decision? Association and causation
2. An educator collects eighth grade math scores from a local school and
uses this data to recommend curriculum changes for grades 8–12. Which
misuse of statistics may the educator have used in making this
recommendation? Not a representative sample
3. An economist wishes to study the distribution of household income in a
Midwestern city. He randomly selects a sample from 12 households. He
notices two large incomes in his sample. Which measure best represents the
middle of the incomes? Median
4. A cable company offers its customers both cable television and internet.
Which statistical rule should be used to determine the probability that
customers will have both cable television and internet? Multiplication
5. A department store is considering a new credit policy to reduce defaults
on payments. Its records show that 95% of defaults have at least two late
payments. Also, 3% of all customers default and 30% of those customers
who have not defaulted have at least two late payments. Which statistical
rule should be used to find the probability that a customer will default given
that at least two payments were late? Bayes Theorem
Pass Actual Exam
C207 OA Prep- Quiz 1-6 Review
Section 1
1. For companies to attract and retain their best customers, they need a
complete portrait of who they are. To develop this portrait companies turn to
analytics
2. A manufacturer wants to maximize their factory output while specifically
minimizing labor costs. Which type of analytics might they employ to achieve
this goal?
Prescriptive analytics
3. Which type of data error that occurs in measurement is constant within a
data set and is sometimes caused by faulty equipment or bias? Systematic
4. An educator develops a new standardized test to measure math skills of
ninth graders. She has students in her home state of Ohio take the test. If
the test is to be used on a national level, which type of error might be found
in her data? Measurement bias
5. A city government is trying to determine the national origins of its recent
immigrant population. If a survey of the immigrant population is conducted
in English, which type of error might be present in the data? Omission
6. The use of big data is increasingly important to businesses in competitive
markets. Which of the following characteristics is not true of big data?
Can be analyzed with traditional spreadsheets
7. The Davenport-Kim three-stage model consists of framing the problem,
solving the problem, and communicating results. Which two of the following
are part of framing the problem stage? Determine the scope of the
problem, Review of previous findings
8. A healthcare provider is researching blood glucose levels before and after
exercising. Which two elements should be part of any experimental study
such as this?
Treatment procedures, Experimental response
9. Runners cover 26.2 miles in the Olympics marathon. Which level of
measurement is this? Ratio
10. Which level of measurement is the type of cars produced in a Ford
factory? Nominal
, 11. Which level of measurement is the 10 best cities in the U.S. to retire in?
Ordinal
12. Which level of measurement are women’s dress sizes (0, 2, 4, 6, etc.)?
Interval
13. A local school board is studying the impact of a proposed change in
testing on math scores. Bias can be introduced into the study by both
students and teachers. Which research technique would eliminate this type
of bias? Double-blind study
14. A company’s product development team test three new car waxes by
waxing five cars with each wax and then running them through a car wash.
They then record number of washes it takes before the wax begins to
deteriorate. What is the term for the five cars?
The experimental unit
Section 2
1. An online retailer selling workout apparel has a large increase in sales
during December and declares that their weekly newspaper ad resulted in
higher sales. Which misuse of statistics may the retailer have used in making
this decision? Association and causation
2. An educator collects eighth grade math scores from a local school and
uses this data to recommend curriculum changes for grades 8–12. Which
misuse of statistics may the educator have used in making this
recommendation? Not a representative sample
3. An economist wishes to study the distribution of household income in a
Midwestern city. He randomly selects a sample from 12 households. He
notices two large incomes in his sample. Which measure best represents the
middle of the incomes? Median
4. A cable company offers its customers both cable television and internet.
Which statistical rule should be used to determine the probability that
customers will have both cable television and internet? Multiplication
5. A department store is considering a new credit policy to reduce defaults
on payments. Its records show that 95% of defaults have at least two late
payments. Also, 3% of all customers default and 30% of those customers
who have not defaulted have at least two late payments. Which statistical
rule should be used to find the probability that a customer will default given
that at least two payments were late? Bayes Theorem
