The business college wants to know if their graduates are ge

The business college wants to know if their graduates are getting paid better than the teaching college. They take a random survey of 3 business college graduates and 3 teaching college graduates and report on their incomes.   At a 0.05 significance level can we conclude that there is a difference in the mean income of the two groups?

Business College Graduates

College of Nursing

Teaching College Graduates

64

75

74

70

76

69

What is the treatment degrees of freedom (MST degrees of freedom)?

What is the error degrees of freedom (MSE degrees of freedom)?

Solution

What is the treatment degrees of freedom (MST degrees of freedom)?

3-1=2

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What is the error degrees of freedom (MSE degrees of freedom)?

Total n=2*3=6

So the degree of freedom =6-3 (i.e. 3 treatments) =3