Given below are sample sizes for the groups in a dataset and an
outline of an analysis of variance table with some information on
the sums of squares.
df(Total) = n-1 = (7+7+7)-1 = 20
df(groups) = k-1 = 3-1 = 2
df(Error) = n-k = 21 - 3 = 18
Mean sum of squares (Groups) = MS(Groups) = SS(Groups) / df(Groups) = 120/2 = 60
Mean sum of squares (Error) = MS(Error) = SS(Error) / df(Error) = 279/18 = 15.5
F-statistic = MS(Groups) / MS(Error) = 60/15.5 = 3.87
ANOVA table:
Source | df | SS | MS | F-statistic |
Groups | 2 | 120 | 60 | |
Error | 18 | 279 | 15.5 | 3.87 |
Total | 20 | 399 |
Given below are sample sizes for the groups in a dataset and an outline of an...
show work pleas Given the following sample sizes, determine the df. n1 = 18 and n2 = 22 3. Given the following sample sizes, determine the df. n1 = 40 and n2 = 40
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