# t-test and anova worksheet

(Only accept if you’ve done this before)

Here is a link to help you with SPSS. Keep in mind it is older (2008), so the pictures of SPSS are from an older edition but it still should explain your tests fairly well.
http://www.statistics-help-for-students.com/

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t-test and anova worksheet
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Stats Worksheet—t-Test and ANOVA

Activity: Independent Sample t-test
Research was conducted on the weights of high school students. The following results were found:

Males
103
126
126
137
165
165
129
200
148
Females
109
132
75
88
113
151
70
115
104

Enter the data above into SPSS and give me the following statistical results:

Results
Males ​ Females

Mean ​ ________​ ________

Standard deviation ​ ________​ ________

N size​​ ________​ ________

df ​ ________

t value​ ________

significant level ​ ________

What do these results tell us?
______________________________________________________________________________________

______________________________________________________________________________________

Most statistical tests use a .05 significance level. Explain what that means.

______________________________________________________________________________________

______________________________________________________________________________________

Stats Worksheet—ANOVA

1. The independent variable(s) must be of what type of
data?_______________________________________

The dependent variable must be of what type of data?_________________________________

2. The purpose of a study is to compare relational satisfaction for three types of people: (a) married, (b) living together, but not married, or (c) just dating, not living together. Write a null hypothesis and an alternative hypothesis using ANOVA as your statistic.

a. The independent variable is ___________________________________________________________

b. The dependent variable is______________________________________________________________

c. Null hypothesis:______________________________________________________________________

d. Alternative hypothesis: _________________________________________________________________

Activity: ANOVA

Test scores were collected in a class. The following results were found:

Freshmen
77
88
79
83
90
73
78

Sophomores
66
88
79
66
90
99
76
69

Juniors
80
99
79
86
84
92
94
77
79
Seniors
88
87
97
93
95
92
88
85
90

Enter the data above into SPSS and give me the following statistical results:

Results
Freshmen​ Sophomores​ Juniors​ Seniors

Mean ​ ________​ ________​________​ ________

Standard deviation ​ ________​ ________​________​ ________

N size​​ ________​ ________​________​ ________

df ​ ________

F​​ ________

significant level ​ ________

What do these results tell us?
______________________________________________________________________________________

______________________________________________________________________________________

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