To compare the cost of three shipping methods,a random sample of four shipments is taken for each of three firms.The cost per shipment is shown below. In a one-factor ANOVA,the degrees of freedom for the between-groups sum of squares will be
A)11
B)3
C)2

Question

To compare the cost of three shipping methods,a random sample of four shipments is taken for each of three firms.The cost per shipment is shown below.  In a one-factor ANOVA,the degrees of freedom for the between-groups sum of squares will be
A)11 
B)3 
C)2

Quizplus · Accepted Answer

The degrees of freedom for the between-groups sum of squares in a one-factor ANOVA is equal to the number of groups minus one. In this case, there are three groups (one for each shipping method), so the degrees of freedom for the between-groups sum of squares will be 3-1=2. Therefore, the correct answer is C.

To Compare the Cost of Three Shipping Methods,a Random Sample