Source of Variation |
Sum of Squares |
Degrees of Freedom |
Mean Square |
F statistic |
Between Groups |
210.2788 |
|||
Within Groups |
1483 |
74.15 |
||
Total |
2113.833 |
Using above ANOVA result we get,
i) the F statistic is,
F = MSBetween / MSWithin = 210.2788 / 74.15 = 2.84
Answer: d) 2.84
ii) The sum of squares for between groups variation ( SSBetween ) is,
SSBetween = SSTotal - SSWithin = 2113.833 - 1483 = 630.833
Answer: b) 630.83
iii) Degrees of Freedom for between groups variation ( DFBetween ) is,
DFBetween = SSBetween / MSBetween = 630.83 / 210.2788 = 2.999
DFBetween = 3
Answer: a) 3
DFWithin = SSWithin / MSWithin = 1483 / 74.15 = 20
DFTotal = DFBetween + DFWithin = 3 + 20 = 23
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