Chi-Square Goodness of Fit Test
χ² = Σ (Oi - Ei)² / Ei
How to Interpret
- If χ² > critical value, reject the null hypothesis
- Higher χ² means greater deviation from expected
- Degrees of freedom = number of categories - 1
Chi-Square Calculator
Enter observed and expected frequencies to compute the chi-square statistic.
Chi-Square Statistic (χ²)
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Degrees of Freedom
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Significance (p < 0.05)
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Critical Value (p=0.05)
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Critical Value (p=0.01)
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Component Breakdown
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