PubH 6002
QUIZ 4 Answer Key
Biostatistical Applications for Public Health
George Washington University
This Document Description:
Complete PubH 6002: Biostatistical
Applications for Public Health Quiz 4 Answer
Key (MCQs with fully worked solutions)
, PubH 6002: Biostatistical Applications for Public Health
Quiz 4
Student Name:
Instructions: This quiz consists of 18 MC questions. While this quiz is designed to take 35
minutes, you have 2 hours to complete it. Work individually! You may use your own formula
sheets containing relevant hand-written notes as well as a standard or scientific calculator. To
receive full credit, you must show all of your work. Good luck!
For questions 1-7, refer to the following information: A college campus surveyed a random
selection of students to gauge interest in a new exercise facility. Of interest was knowing
whether there was a relationship between regular exercise and whether students live on or off
campus. Using a 0.05 significance level, it is of interest to test the claim that location of where
the student lives (on vs. off campus) is associated with exercise status (regular vs. sporadic). Test
this claim by answering the following questions.
1. What are the most appropriate null and alternative hypotheses? (1 point)
a. H0: Location and exercise follow a normal distribution
H1: Location and exercise do not follow a normal distribution
b. H0: 25% of off campus students and 50% of on campus students are regular exercisers
H1: Off campus and on campus students exercise rate differs from 25% and 50%
c. H0: Location and exercise are dependent
H1: Location and exercise are independent
d. H0: Location and exercise are independent
H1: Location and exercise are dependent
e. H0: There is no linear correlation between location and exercise
H1: There is a linear correlation between location and exercise
Solution: The null and alternative hypotheses are those of independence and dependence respectively. (D)
1
For those interested, these data are from “A Case-Control Study of the Effectiveness of Bicycle Safety Helmets in
Preventing Facial Injury,” by Thompson, Thompson, Rivara, and Wolf, American Journal of Public Health, Vol. 80,
No. 12.
This study source was downloaded by 100000902171055 from CourseHero.com on 12-17-2025 20:44:46 GMT -06:00
https://www.coursehero.com/file/79710973/Quiz-4-Keydocx/
QUIZ 4 Answer Key
Biostatistical Applications for Public Health
George Washington University
This Document Description:
Complete PubH 6002: Biostatistical
Applications for Public Health Quiz 4 Answer
Key (MCQs with fully worked solutions)
, PubH 6002: Biostatistical Applications for Public Health
Quiz 4
Student Name:
Instructions: This quiz consists of 18 MC questions. While this quiz is designed to take 35
minutes, you have 2 hours to complete it. Work individually! You may use your own formula
sheets containing relevant hand-written notes as well as a standard or scientific calculator. To
receive full credit, you must show all of your work. Good luck!
For questions 1-7, refer to the following information: A college campus surveyed a random
selection of students to gauge interest in a new exercise facility. Of interest was knowing
whether there was a relationship between regular exercise and whether students live on or off
campus. Using a 0.05 significance level, it is of interest to test the claim that location of where
the student lives (on vs. off campus) is associated with exercise status (regular vs. sporadic). Test
this claim by answering the following questions.
1. What are the most appropriate null and alternative hypotheses? (1 point)
a. H0: Location and exercise follow a normal distribution
H1: Location and exercise do not follow a normal distribution
b. H0: 25% of off campus students and 50% of on campus students are regular exercisers
H1: Off campus and on campus students exercise rate differs from 25% and 50%
c. H0: Location and exercise are dependent
H1: Location and exercise are independent
d. H0: Location and exercise are independent
H1: Location and exercise are dependent
e. H0: There is no linear correlation between location and exercise
H1: There is a linear correlation between location and exercise
Solution: The null and alternative hypotheses are those of independence and dependence respectively. (D)
1
For those interested, these data are from “A Case-Control Study of the Effectiveness of Bicycle Safety Helmets in
Preventing Facial Injury,” by Thompson, Thompson, Rivara, and Wolf, American Journal of Public Health, Vol. 80,
No. 12.
This study source was downloaded by 100000902171055 from CourseHero.com on 12-17-2025 20:44:46 GMT -06:00
https://www.coursehero.com/file/79710973/Quiz-4-Keydocx/
