Chi-Square

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Last updated 4:57 PM on 6/13/26
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6 Terms

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Chi-Square Test
Compares observed and expected values
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Null Hypothesis (H₀)
No significant difference exists
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Alternative Hypothesis (H₁)
Significant difference exists
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Reject H₀
Difference is too large to be due to chance
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Fail to Reject H₀
Difference can be explained by chance
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Purpose of Chi-Square
Determine if a population differs from expectation