A Researcher Is Comparing 6 Groups to Test If They
A researcher is comparing 6 groups to test if they have the same means. There are 53 data values altogether. The degrees of freedom for the Between (dfB) and the degrees of freedom for the Within (dfW) are
A) dfB = 47, dfW = 52
B) dfB = 5, dfW = 47
C) dfB = 5, dfW = 52
D) dfB = 6, dfW = 52
A portion of an ANOVA summary table is shown below. The critical value for this problem should have dfN (degrees of freedom in the numerator) and dfD (degrees of freedom in the denominator) of
A) dfN = 3, dfD = 26
B) dfN = 26, dfD = 3
C) dfN = 19, dfD = 34
D) dfN = 34, dfD = 19
A portion of an ANOVA summary table is shown below. Calculate the F test value.
When performing an F-test, if the means differ significantly, the between-group variance will be much smaller than the within-group variance.