Chi-square goodness of fit
1 Categorical Dependent Variable, and 0
Independent Variables


A chi-square goodness of
fit test allows us to test whether the observed proportions for a categorical
variable differ from hypothesized proportions [13].
For example, let's suppose we
believe that the population of Movielens users consists of 10% Hispanic, 10%
Asian, 10% African American and 70% Caucasian people. We perform an experiment
surveying the ethnicity of Movielens users. The Chi-square goodness of fit
tests whether the observed proportions from our sample differ significantly
from the hypothesized proportions.
Values to report:
·
(optional)
number of values satisfying each condition (e.g. number of study participants
from each race)
·
percent of
values satisfying each condition (e.g. percentage of study participants from
each race)
·
Chi-square
statistic
·
degrees of
freedom
·
p value
The views and opinions expressed in this page are strictly those of the page author.
The contents of this page have not been reviewed or approved by the University of Minnesota.