Solution
a)Number of groups are 4 because
Here F(3,32) , 3 indicates degrees of freedom for group so it is given by = Total number of group – 1 = 4- 1 =3
So Number of groups are 4
c) Observations were there in total are 36
Because total degrees of freedom are n-1
degrees of freedom = degrees of freedom group + degrees of freedom error
degrees of freedom = 3+32 = 35
so
n-1 = 35
n = 36
b)since groups are equal in size
so
there are total 4 groups so
n/4 = 36/4 = 9
Number of observations are 9
d) The p-value is .008618
As p-value < 0.05 level of significance so we conclude that all groups do not equal mean
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