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3 Cards in this Set
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- Back
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Chi square |
Sum of squared standard normals. Chi squared RVs are additive. Standard chi square is sample variance over population variance. |
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T |
Instead of standardized normal with population standard deviation, with sample standard deviation. Standard normal over square root of chi square divided by n-1 (independent fraction parts) |
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F |
Compare variability between two independent populations. Ratio of chi-square RVs. |
