Question

You are doing an ANOVA and need an Fcrit for 5 groups of 9 people (total N is 45). What is the p,<05 crit level?

2.61

2.84

2.59

2.45

2.42

Answer 1

Solution:

We are given

Total number of groups = k = 5

Between degrees of freedom = k - 1 = 5 - 1 = 4

Total sample size = N = 9*5 = 45

Total degrees of freedom = N - 1 = 45 - 1 = 44

Within degrees of freedom = Total degrees of freedom - Between degrees of freedom

Within degrees of freedom = 44 - 4 = 40

So, we have

df1 = 4, df2 = 40, α = 0.05

So the required F critical value by using F-table/excel is given as below:

Critical F value = 2.605975

Critical F value = 2.61