A researcher uses an analysis of variance to test for mean differences among four treatment conditions using a sample of n=11 participants in each treatment. What degrees of freedom (df) would the F-ratio from this analysis have? 1) df= 4,44 2) df= 2,30 3) df= 3,40 4) df= 3,44

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A: Solution We have given the analysis of t test for equal variances.

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A:

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A:

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Q: What does it mean that the variance (computed by dividing by N) is a biased statistic?

A:

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A: Given : n1=100 , n2=100 , X1-bar=2.70 , X2-bar=2.54 , s12=0.36 , s22=0.40 ,α=0.05 Here , assume that…

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