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PSY 3213Fall 2003
1
Homework 10
(10 points)
ChiSquare Tests
1.
After years of working in the Human Resources Department, Terry notices a possible trend
and decides to test it. Terry believes that the likelihood of calling in sick differs depending on
day of the work week. Terry tabulates absence figures by day of the week for the past year.
Results appear below.
Day
Monday
Tuesday
Wednesday Thursday
Friday
Absences
60
35
20
40
45
N=200
a.
In words, state the null and alternative hypotheses for the study described above (1 point).
b.
Perform the appropriate ChiSquare test. Be sure to show your work. (2 points).
c.
Check your calculations using SPSS. Label your answer as appropriate. (1 point)
d.
Does this data support the employee's hypothesis? Why or why not? (1 point)
Using SPSS for the Chisquare Goodnessoffit test
Punch one column of data for
Day
of the week.
Use letters or numbers for the days (e.g., M or 1
for Monday).
Choose
Analyze
from the pulldown menu. Then choose
Nonparametric Tests
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 Fall '08
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