A manufacturer of automobile transmissions uses three different processes. Management ordered a study of the production costs to see if there is a difference among the three processes. A summary of the findings is shown next. In an ANOVA table, what are the degrees of freedom for the treatment source of variation?
A)2
B)3
C)10
D)27

Question

A manufacturer of automobile transmissions uses three different processes. Management ordered a study of the production costs to see if there is a difference among the three processes. A summary of the findings is shown next.  In an ANOVA table, what are the degrees of freedom for the treatment source of variation?
A)2 
B)3 
C)10 
D)27

Quizplus · Accepted Answer

The degrees of freedom for the treatment source of variation is equal to the number of treatments minus one, which is 3-1 = 2.

A Manufacturer of Automobile Transmissions Uses Three Different Processes