Texas Instruments TI-84 PLUS SILV Guidebook - Page 392
ANOVA, SampFTest, Appendix B: Reference Information
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ANOVA( The ANOVA Ü statistic is: Ü = F-----a---c---t--o---r---M-----S-ErrorMS The mean squares (MS) that make up Ü are: FactorMS = F-----a---c---t--o---r---S---S-Factordf ErrorMS = E-----r--r---o---r---S---S-Errordf The sum of squares (SS) that make up the mean squares are: I ∑ FactorSS = ni(xi-x)2 i=1 I ∑ ErrorSS = (ni-1)Sxi2 i=1 The degrees of freedom df that make up the mean squares are: Factordf = I - 1 = numeratordf for Ü I Errordf = ∑ (ni - 1) = denominatordf for Ü i=1 where: I xi Sxi ni x = number of populations = the mean of each list = the standard deviation of each list = the length of each list = the mean of all lists 2-SampFTest Below is the definition for the 2-SampÜTest. Sx1, Sx2 Ü = Sample standard deviations having n1-1 and n2-1 degrees of freedom df, respectively. = Û-statistic = ⎛ ⎝ SS----xx---12-⎠⎞ 2 Appendix B: Reference Information 385