In Class Worksheet 1 - Employment.docx
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School
California State University, Fullerton *
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Course
120
Subject
Mathematics
Date
Apr 3, 2024
Type
Pages
2
Uploaded by CorporalMagpieMaster105
Employment Investigation
6 Step Method: Steps 1-2
In-Class Activity Worksheet
According to the
National Center for Education Statistics
, 40 percent of full-time undergraduate
students work either full-time or part-time. However, we believe that this number may not be
accurate for students at CSUF, specifically.
Step 1: Ask a Research Question
1. In this investigation, what is the real-world question we want to answer?
Are CSUF students more likely to work than other full time undergraduate students?
2. Write out three possible answers to the real-world question.
1.
yes- more likely
2.
no- less likely
3.
no- just as likely
3. Write your null hypothesis (H
0
) as a complete sentence in the context of the research question.
To do this, just rewrite the answer (from Question #2) that claims that nothing interesting is
happening.
The null hypothesis is just as likely which shows that nothing interesting is happening.
4. Discuss the remaining two answers with your group: for each answer, do you believe it could
be true (before collecting any data)? Why or why not?
I do think that it could be likely, just depending on students' schedules.
It could be less likely because a lot of students commute and might not have a job since
they still live with their parents.
5. Write your alternative hypothesis (H
a
) as a complete sentence in the context of the research
question. If you think only one of the answers from Question #4 could be true, just rewrite that
answer. If you think both answers could be true, write a single sentence that combines the two
answers.
one or two sided alternative
Step 2: Design a Study
6. What population does our research question ask about?
all full time CSUF students
7. What are the observational units that we will need to collect data about?
csuf students in math 120
8. What variable would we need to record the value of for each observational unit in the
population to answer our research question? Is this a numerical (quantitative) or categorical
(qualitative) variable? What are the possible values (numbers or categories) of the variable?
The variable we would need to record would be if the students work or not. It is a
categorical variable. The possible values of the variable is about 40%.
9. What parameter would summarize the variable in the population? Include an appropriate
symbol for the parameter.
π = 0.40 = 40%
10. What can you say about the value of the parameter if your null hypothesis is true? Write this
statement mathematically as an equation or inequality.
If the null hypothesis is true, the percentage would be the same as other full time students
at other universities.
11. What can you say about the value of the parameter if your alternative hypothesis is true?
Write this statement mathematically as an equation or inequality.
If the alternative hypothesis is true the percentage would be greater or less than other full
time students at other universities
12. What is the sample that we will collect data from? Is this a random sample or a convenience
sample? Explain your reasoning.
This would be a convenience sampling since we are only studying students in universities
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