final review sheet

# final review sheet - z-test known known known unknown Z= M...

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2 2 2 1 1 2 2 1 n s n s s x x + = z-test μ known σ known Z = M - M σ μ t-test μ known σ unknown One-sample t = M - M S S M = n s s = 1 n SS df = n-1 One-sample: Compares M to μ M d S = Independent Samples 2 1 2 1 x x s t x x = ϖ df = (n 1 -1) + (n 2 -1) Independent Samples: Compares two independent sample means 12 2 p pp M M d s SS = =

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Dependent Samples D s = n s D s D = 1 n SS D n D D SS D = ) ( 2 2 df = n-1 (n = # of matched pairs ) Dependent Samples: Compares two dependent sample means -same participants at different times -different participants matched by some criterion D D d s = ANOVA MSwithin MSbetween F = dfbetween SSbetween MSbetween = = N G n T SSbetween 2 T=total scores in each condition n=number of scores in the condition k=number G=sum of all the scores N=number of scores in total df between = k-1, where of conditions dfwithin SSwithin MSwithin = = SS SSwithin df within = N-k, where N = total #
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final review sheet - z-test known known known unknown Z= M...

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