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formula_sheet_exam_3 fall 2004

# formula_sheet_exam_3 fall 2004 - PSYCHOLOGY 293 EXAM 3...

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P SYCHOLOGY 293 E XAM 3 – F ORMULA S HEET C ONFIDENCE I NTERVALS : Based on z X X σ z ± where, X σ = n σ or = n 2 σ Based on 1-sample t X X ts ± df = n – 1 where, X s = n s or = n s 2 Based on 2 ind.-samples t 2 1 ) ( 2 1 x x ts X X - ± - 2 1 x x s - = 2 2 1 2 n s n s p p + where, ) 2 ( ) 1 ( ) 1 ( 2 1 2 2 2 2 1 1 2 - + - + - = n n s n s n s p Based on related-samples t D ts D ± df = n –1 where, D s = n s D 2 or = n s D O NE -W AY ANOVA: Sums of Squares : Degrees of freedom : SS total = SS group + SS error df group = k - 1 SS Error = SS Total – SS group d f error = N k df total = N - 1 O NE -W AY ANOVA ( CONTINUED ): Mean Squares : F-ratio : MS group = group group df SS F = error group MS MS MS error = error error df SS P ROTECTED T ( LSD ) TEST : j error i error j i n MS n MS t + - = ) X X ( df = df error = N – k TWO -W AY ANOVA: Degrees of Freedom : df total = N – 1 df Factor A = k – 1 df Factor B = k – 1 df interaction = df Factor A * df Factor B df error

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formula_sheet_exam_3 fall 2004 - PSYCHOLOGY 293 EXAM 3...

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