Question

In: Statistics and Probability

1. what is an F ratio and how is it calculated? 2. If SSbetween = 30,...

1. what is an F ratio and how is it calculated?

2. If SSbetween = 30, SSwithin = 40, DFbetween =3, and DFwithin = 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 is 5.6 means score for group 2 is 7.8 and means score for group 3 is 4.8 what is the SS between of this study?

Expert Solution

ANSWER::

1).The F-ratio is the ratio of between group variance 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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orchestra answered 3 years ago

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