WGU C207 DATA DRIVEN DECISION MAKING
TASK 1 ACTUAL TASK QUESTIONS AND
SOLVED ANSWERS
◉ 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?
a. Observation study
b. Blind study
c. Cohort study
d. Double blind study.
Answer: 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 washes it takes before the wax
begins to deteriorate. What is the term for the five cars?
a. The response
b. The construct validity
c. The experimental unit
d. The treatment.
Answer: c
,◉ 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?
a. Conscious Bias
b. Missing Data
c. Association and Causation
d. Small Sample Size.
Answer: c
◉ An educator collects eighth grade math scores from a local school
and used this data to recommend curriculum changes for grades 8 -
12. What misuse of statistics may the educator have used in making
this recommendation?
a. Not a representative sample
b. Conscious Bias
c. Lack of Binding
d. Missing Data.
Answer: a
◉ 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?
a. Mode
b. Median
c. Variance
d. Mean.
Answer: b
◉ A cable company offers its customers both cable television and
internet. What statistical rule should be used to determine the
probability that customers will have both cable television and
internet?
a. Multiplication
b. Bayes Theorem
c. Combination
d. Addition.
Answer: a
◉ A department store is considering a new credit policy to reduce
defaults on payments. Its records show that 95% of defaults have at
least 2 late payments. Also, 3% of all customers default and 30% of
those customers who have not defaulted have a least 2 late
payments. What statistical rule should be used to find the
TASK 1 ACTUAL TASK QUESTIONS AND
SOLVED ANSWERS
◉ 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?
a. Observation study
b. Blind study
c. Cohort study
d. Double blind study.
Answer: 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 washes it takes before the wax
begins to deteriorate. What is the term for the five cars?
a. The response
b. The construct validity
c. The experimental unit
d. The treatment.
Answer: c
,◉ 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?
a. Conscious Bias
b. Missing Data
c. Association and Causation
d. Small Sample Size.
Answer: c
◉ An educator collects eighth grade math scores from a local school
and used this data to recommend curriculum changes for grades 8 -
12. What misuse of statistics may the educator have used in making
this recommendation?
a. Not a representative sample
b. Conscious Bias
c. Lack of Binding
d. Missing Data.
Answer: a
◉ 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?
a. Mode
b. Median
c. Variance
d. Mean.
Answer: b
◉ A cable company offers its customers both cable television and
internet. What statistical rule should be used to determine the
probability that customers will have both cable television and
internet?
a. Multiplication
b. Bayes Theorem
c. Combination
d. Addition.
Answer: a
◉ A department store is considering a new credit policy to reduce
defaults on payments. Its records show that 95% of defaults have at
least 2 late payments. Also, 3% of all customers default and 30% of
those customers who have not defaulted have a least 2 late
payments. What statistical rule should be used to find the
