C207 Quiz Questions and Answers Comprehensive Guide | Accurate & Verified Answers to
Pass Actual Exam
Section 1: Quiz
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
histograms
analytics
management science
statistics
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?
Predictive analytics
Descriptive analytics
Diagnostic analytics
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?
Omission
Random
Systematic
Outlier
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?
Systematic error
Omission error
Information bias
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?
Random
Outlier
Omission
Accuracy
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?
Contains unstructured data
Can be analyzed with traditional spreadsheets
Requires the use of analytics
Contains structured data
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
Data collection
Review of previous findings
Presenting a recommendation
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
Patient observation
Statistical validity
Experimental response
9. Runners cover 26.2 miles in the Olympics marathon.
Which level of measurement is this?
Ratio
Ordinal
Nominal
Interval
10. Which level of measurement is the type of cars produced in a Ford factory?
Nominal
Interval
Ordinal
Ratio
11. Which level of measurement is the 10 best cities in the U.S. to retire in?
Ratio
Ordinal
Nominal
Interval
12. Which level of measurement are women’s dress sizes (0, 2, 4, 6, etc.)?
, Ratio
Ordinal
Nominal
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
Blind study
Cohort study
Observation 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 treatment
The construct validity
The response
The experimental unit
Section 2: Quiz
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?
Small sample size
Association and causation
Missing data
Conscious bias
, 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?
Lack of blinding
Conscious bias
Missing data
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?
Mean
Median
Variance
Mode
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
Addition
Combination
Bayes Theorem
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?
Central Limit Theorem
Multiplication Rule
Bayes Theorem
Combination Rule
6. Based on quality checks at a plastic bags manufacturer, the breaking
strength of their bags has a mean of 50.5 and a standard deviation of 1.6. A
customer’s test of the bags finds bag strength of 54.2 or less.
Pass Actual Exam
Section 1: Quiz
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
histograms
analytics
management science
statistics
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?
Predictive analytics
Descriptive analytics
Diagnostic analytics
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?
Omission
Random
Systematic
Outlier
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?
Systematic error
Omission error
Information bias
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?
Random
Outlier
Omission
Accuracy
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?
Contains unstructured data
Can be analyzed with traditional spreadsheets
Requires the use of analytics
Contains structured data
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
Data collection
Review of previous findings
Presenting a recommendation
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
Patient observation
Statistical validity
Experimental response
9. Runners cover 26.2 miles in the Olympics marathon.
Which level of measurement is this?
Ratio
Ordinal
Nominal
Interval
10. Which level of measurement is the type of cars produced in a Ford factory?
Nominal
Interval
Ordinal
Ratio
11. Which level of measurement is the 10 best cities in the U.S. to retire in?
Ratio
Ordinal
Nominal
Interval
12. Which level of measurement are women’s dress sizes (0, 2, 4, 6, etc.)?
, Ratio
Ordinal
Nominal
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
Blind study
Cohort study
Observation 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 treatment
The construct validity
The response
The experimental unit
Section 2: Quiz
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?
Small sample size
Association and causation
Missing data
Conscious bias
, 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?
Lack of blinding
Conscious bias
Missing data
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?
Mean
Median
Variance
Mode
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
Addition
Combination
Bayes Theorem
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?
Central Limit Theorem
Multiplication Rule
Bayes Theorem
Combination Rule
6. Based on quality checks at a plastic bags manufacturer, the breaking
strength of their bags has a mean of 50.5 and a standard deviation of 1.6. A
customer’s test of the bags finds bag strength of 54.2 or less.
