Statistical Data Literacy - D772 Pretest QUESTIONS WITH
ANSWERS
What is one example of a sample from a research study? - CORRECT
ANSWERS ✔✔A set of 100 randomly collected bees from a hive
What is one example of an individual in an allergy treatment study? -
CORRECT ANSWERS ✔✔A patient who is part of the study
To determine customer product preferences, a clothing company uses
a computer to fairly select 100 of its customers to participate in an
interview. What is the sampling method described in this situation? -
CORRECT ANSWERS ✔✔Simple random
What is the advantage of using simple random sampling? -
CORRECT ANSWERS ✔✔It is the most straightforward and
effective way to produce data that is likely to be representative of the
population.
What is one example of an experiment? - CORRECT ANSWERS
✔✔To measure the effect of light on attention span, researchers
recruit participants and randomly assign them to two rooms, one
with artificial light and the other with natural light.
, What role does the researcher play in an experiment? - CORRECT
ANSWERS ✔✔Manipulate variables and observe the effects
What is an example of a control group? - CORRECT ANSWERS
✔✔In a study on a new plant fertilizer, those not receiving the
fertilizer
The director of campus food services at a university wants to study
the food preferences of students on campus. They place phone calls
to 500 random students that span the grade levels. What is the
sample in this study? - CORRECT ANSWERS ✔✔Students called by
the director
What is one implication of using a representative sample? -
CORRECT ANSWERS ✔✔The sample provides reliable data that can
be generalized to the larger population with confidence.
What is one situation that shows a sampling frame error? -
CORRECT ANSWERS ✔✔To obtain information on preferences on
movies being shown at a small theater, the owner asked for input
from all customers that visited the theater on Monday or Tuesday of
a given week.
ANSWERS
What is one example of a sample from a research study? - CORRECT
ANSWERS ✔✔A set of 100 randomly collected bees from a hive
What is one example of an individual in an allergy treatment study? -
CORRECT ANSWERS ✔✔A patient who is part of the study
To determine customer product preferences, a clothing company uses
a computer to fairly select 100 of its customers to participate in an
interview. What is the sampling method described in this situation? -
CORRECT ANSWERS ✔✔Simple random
What is the advantage of using simple random sampling? -
CORRECT ANSWERS ✔✔It is the most straightforward and
effective way to produce data that is likely to be representative of the
population.
What is one example of an experiment? - CORRECT ANSWERS
✔✔To measure the effect of light on attention span, researchers
recruit participants and randomly assign them to two rooms, one
with artificial light and the other with natural light.
, What role does the researcher play in an experiment? - CORRECT
ANSWERS ✔✔Manipulate variables and observe the effects
What is an example of a control group? - CORRECT ANSWERS
✔✔In a study on a new plant fertilizer, those not receiving the
fertilizer
The director of campus food services at a university wants to study
the food preferences of students on campus. They place phone calls
to 500 random students that span the grade levels. What is the
sample in this study? - CORRECT ANSWERS ✔✔Students called by
the director
What is one implication of using a representative sample? -
CORRECT ANSWERS ✔✔The sample provides reliable data that can
be generalized to the larger population with confidence.
What is one situation that shows a sampling frame error? -
CORRECT ANSWERS ✔✔To obtain information on preferences on
movies being shown at a small theater, the owner asked for input
from all customers that visited the theater on Monday or Tuesday of
a given week.
