1. what is an F ratio and how
1.what is an F ratio and how is it calculated?
2. If SSbetween = 30, SSwithin = 40, DFbetween =3, andDFwithin = 20, then F = ?
3. If dfbetween =3, and DFwithin = 60, if alpha is set at .05,then Fcrit= ?
4. if the sample size is 30 in the mean score for group one is5.6 means score for group 2 is 7.8 and means score for group 3 is4.8 what is the SS between of this study?
Answer:
ANSWER::
1).The F-ratio is the ratio of between groupvariance to within group variance.
it is calculated as:-
2).given data are:-
3).given data are:-
[ in any blank cell of excel type =F.INV.RT(0.05,3,60)]
4).given data are:-
the grand mean be:-
the SS between of this study is:-
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