4. The F test statistic in a one-way ANOVA is A)MSA/MSW. B)SSA/SSW. C)MSW/MSA. D

Question

4. The F test statistic in a one-way ANOVA is

                  A)MSA/MSW.
B)SSA/SSW.
C)MSW/MSA.
D)SSW/SSA.

A)19.
               B)16.
C)4.
D)3.

A)The charges in each group of doctors sampled are drawn fromnormally distributed populations.
B)The charges in each group of doctors sampled are drawn frompopulations with equal variances.
C)There is no significant interaction effect between the area ofprimary specialty and the medical school on the doctors' meancharges.
                  D)All of the above are necessary assumptions.

Explanation / Answer

1.MSA/MSW    (C) MSA is Mean SquareAmong MSW is Mean SquareWithin 2. 16 (B) 3. numeratordf = 3, denominator df =152   (B)

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