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The null hypothesis for the chi-square test is that two categorical variables are _______.
A) independent
B) dependent
C) correlated
D) biased
Null Hypothesis
A statistical hypothesis that assumes no effect or no difference between phenomena or populations.
Chi-square Test
A statistical test used to determine the difference between observed and expected frequencies in one or more categories.
Categorical Variables
Variables that represent categories and can take on a limited and usually fixed number of possible values, distinguishing items by non-numeric attributes.
- Comprehend the null hypothesis in chi-square tests for goodness-of-fit and tests of independence.
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Learning Objectives
- Comprehend the null hypothesis in chi-square tests for goodness-of-fit and tests of independence.
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