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WGU C207 Quiz Review – Questions & Correct Answer
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WGU C207 Quiz Review – Questions & Correct AnswerFor companies to attract and retain their best customers they need a
complete portrait of who they are. To develop this portrait companies turn
to...
Statistics
Analytics
Management Science
Histograms ✔️Ans - B
A manufacturer wants to maximize their factory output while specifically
minimizing labor costs. What type of analytics might they employ to
achieve this goal?
Descriptive Analytics
Predictive Analytics
Prescriptive Analytics
Diagnostic Analytics ✔️Ans - C
What type of data error that occurs in measurement is constant within a
data set and is sometimes caused by faulty equipment or bias?
Random
Omission
Outlier
Systematic ✔️Ans - D
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, what type of error might be found
in her data?
Omission Error
Systematic Error
Measurement Bias
Information Bias ✔️Ans - C
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 what type of error might be present in the data?
Random
,Omission
Outlier
Accuracy ✔️Ans - B
The use of Big Data is increasing important to businesses in competitive
markets. Which of the following characteristics is not true of big data?
Requires the use of analytics
Contains structured data
Contains unstructured data
Can be analyzed with traditional spreadsheets ✔️Ans - D
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 ✔️Ans - A & C
A healthcare provider is researching blood glucose levels before and after
exercising. What two elements should be part of experimental study?
Treatment procedures
Patient observation
Statistical validity
Experimental response ✔️Ans - A & D
Runners cover 26.2 miles in the Olympics marathon. What level of
measurement is this?
Nominal
Ordinal
Integral
Ratio ✔️Ans - D
The type of cars produced in Ford factory. What level of measurement is
this?
Nominal
Ordinal
Integral
Ratio ✔️Ans - A
, The 10 best cities in the U.S. to retire in. What level of measurement is this?
Nominal
Ordinal
Integral
Ratio ✔️Ans - B
Women's dress sizes (2,4,6, etc.). What level of measurement is this?
Nominal
Ordinal
Interval
Ratio ✔️Ans - C
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?
Observation study
Blind study
Cohort study
Double blind study ✔️Ans - D
A Company's product development team test 3 new car waxes by waxing 5
cars with each wax and then running them through a car wash. They then
record number of waxes it takes before the wax begins to deteriorate. What
is the term for the five cars waxed with each wax and then run through a
car wash?
The response
The construct validity
The experimental unit
The treatment ✔️Ans - D
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. What misuse of statistics may the retailer have used in making
this decision?
Conscious Bias
Missing Data
Association and Causation
Small Sample Size ✔️Ans - C
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