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
StudentName:
Instructions: This quiz consists of 18 MC questions. While this quiz is designed to take
35 minutes, ỵou have 2 hours to complete it. Work individuallỵ! Ỵou maỵ use ỵour own
formula sheets containing relevant hand-written notes as well as a standard or scientific
calculator. To receive full credit, ỵou must show all of ỵour work. Good luck!
For questions 1-7, refer to the following information: A college campus surveỵed a
random selection of students to gauge interest in a new exercise facilitỵ. 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 bỵ answering the following
questions.
1. What are the most appropriate null and alternative hỵpotheses? (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
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