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PSYB07H3 Study Guide - Quiz Guide: Categorical Variable, Type I And Type Ii Errors


Department
Psychology
Course Code
PSYB07H3
Professor
Dwayne Pare
Study Guide
Quiz

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Practise
4. A researcher is interested in examining voting behavior of individuals in a small town. He
contacted those eligible to vote to set up interviews with them to ask a series of questions. Of
the people living in the town 7000 are eligible to vote. The interviewer contacted 5000
individuals; 70% of those contacted agreed to interview with the researcher.
a. What is the population of interest to the researcher (how many individuals)?
5000
b. What is the sample of interest to the researcher (how many individuals)?
70%/100=0.7
0.7x5000=3500
5. After collecting the data, the researcher compared the responses of males and females on
the following information: employment status (employed vs. unemployed), salary, age and
number of times voted in the past 8 years (all individuals were eligible to vote for at least 8
years).
a. What are the independent and dependent variables?
Independent: -Age, Gender
Dependent: -Employment status, Salary, # of times voted in past 8 years
b. Identify continuous and discrete variables?
Continuous:-Salary, Age
Discrete: -Gender, Employment status, #of times voted in past 8 years
c. Identify the measurement and categorical data?
Measurement:-Age, Salary, # of times voted in past 8 years
Categorical:-Gender, Employment status
6. In an attempt to simplify the data, the researcher divided the groups based on age in to
younger and older individuals and compared the number of times voted in the past 8 years for
each group.
a. Identify continuous and discrete variables for the simplified data?
Continuous: -Age
Discrete: -# of times voted in past 8 years
b. Identify measurement and categorical data for the simplified data?
Measurement: -Age, # of times voted in past 8 years
Categorical: -Younger and older individuals
Stats Quiz 5:
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