Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
Statistics Fundamentals Unit 1 Milestone
You passed this Milestone
28 questions were answered
correctly. 1 question was
answered incorrectly.
1
Researchers want to test the effects of a new weight loss
program. They believe that gender is a significant factor. The
participants are divided by gender. Then, within each group,
participants are randomly assigned to either the treatment or
control group.
Which of the following would be the most effective to test
•
A matched-pair design experiment
•
A completely randomized design experiment
•
A randomized block design experiment
•
A longitudinal observational study
the effects of the new weight loss program?
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
, Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
RATIONALE
Since people are first put into gender and then are assigned
treatment or control randomly this is called a randomized block
design.
CONCEPT
Randomized Block Design
2
It’s Saturday afternoon, and Denise is going shopping. She stops by
a department store because she needs a new pair of shoes. She
has picked out three styles that she likes. The store associate
asks, “What is your shoe size?”
Which type of question has the store associate asked?
•
Closed and binomial question
•
Closed question
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
, Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
•
Open question
•
Open and binomial question
RATIONALE
Recall a closed question has only a limited number of responses.
Since she can only answer with her shoe size, this would be a
closed question.
CONCEPT
Question Types
3
In a study to assess the risk of obesity with the amount of time
exercised per week, researchers matched each patient, in a
sample of 500 people who are obese, with a person of the same
ethnicity, gender, and age (along with other similar
characteristics) who is not obese. The researchers asked the
patients and their matches a series of questions, and then
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
, Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
tracked eating and exercise habits regularly for several years.
Which type of statistical study are the researchers
conducting?
•
Retrospective study
•
Designed experiment
•
Case-control study
•
Prospective study
RATIONALE
Since the study collected information on people over several
years moving forward, it is a prospective study design.
CONCEPT
Prospective and Retrospective Studies
4
A factory manufactures motorcycles. One of its employees, working
in the quality control department, checks the first 10 and the last
10 motorcycles manufactured in a day.
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
Fundamentals,100% CORRECT RATED
A+
Statistics Fundamentals Unit 1 Milestone
You passed this Milestone
28 questions were answered
correctly. 1 question was
answered incorrectly.
1
Researchers want to test the effects of a new weight loss
program. They believe that gender is a significant factor. The
participants are divided by gender. Then, within each group,
participants are randomly assigned to either the treatment or
control group.
Which of the following would be the most effective to test
•
A matched-pair design experiment
•
A completely randomized design experiment
•
A randomized block design experiment
•
A longitudinal observational study
the effects of the new weight loss program?
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
, Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
RATIONALE
Since people are first put into gender and then are assigned
treatment or control randomly this is called a randomized block
design.
CONCEPT
Randomized Block Design
2
It’s Saturday afternoon, and Denise is going shopping. She stops by
a department store because she needs a new pair of shoes. She
has picked out three styles that she likes. The store associate
asks, “What is your shoe size?”
Which type of question has the store associate asked?
•
Closed and binomial question
•
Closed question
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
, Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
•
Open question
•
Open and binomial question
RATIONALE
Recall a closed question has only a limited number of responses.
Since she can only answer with her shoe size, this would be a
closed question.
CONCEPT
Question Types
3
In a study to assess the risk of obesity with the amount of time
exercised per week, researchers matched each patient, in a
sample of 500 people who are obese, with a person of the same
ethnicity, gender, and age (along with other similar
characteristics) who is not obese. The researchers asked the
patients and their matches a series of questions, and then
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
, Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
tracked eating and exercise habits regularly for several years.
Which type of statistical study are the researchers
conducting?
•
Retrospective study
•
Designed experiment
•
Case-control study
•
Prospective study
RATIONALE
Since the study collected information on people over several
years moving forward, it is a prospective study design.
CONCEPT
Prospective and Retrospective Studies
4
A factory manufactures motorcycles. One of its employees, working
in the quality control department, checks the first 10 and the last
10 motorcycles manufactured in a day.
Unit 1 Milestone Statistics
Fundamentals,100% CORRECT RATED
A+
