Chapter 13: Inferential Statistics and Distributions 234
c
2
GOF-Test
c
2
GOF-Test (Chi Square Goodness of Fit; item D) performs a test to confirm that sample data is
from a population that conforms to a specified distribution. For example, c
2
GOF can confirm that
the sample data came from a normal distribution.
In the example:
list 1={16, 25, 22, 8, 10}
list 2={16.2, 21.6, 16.2, 14.4, 12.6}
The Chi-square
Goodness of Fit
input screen:
Note: Press
… ~ ~ to
select TESTS. Press
†
several times to select
D:X
2
GOF-Test... Press
Í. To enter data for
df (degree of freedom),
press † † †. Type 4.
Calculated
results:
Drawn results:
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