The college of business was interested in comparing the interaction of academic status and class time on class attendance. Three different classes were sampled for each cell in the table. The means for each cell follow. What are the error degrees of freedom?
A) 44
B) 14
C) 30
D) 2

Question

The college of business was interested in comparing the interaction of academic status and class time on class attendance. Three different classes were sampled for each cell in the table. The means for each cell follow.  What are the error degrees of freedom?
A) 44 
B) 14 
C) 30 
D) 2

Quizplus · Accepted Answer

The error degrees of freedom can be calculated using the formula (N - p - 1), where N is the total sample size and p is the number of independent variables. In this case, there are 2 independent variables (academic status and class time) and each has 3 levels, so there are a total of 6 cells. The total sample size is not given, but we can assume that it is equal across all cells. Therefore, N = 3 x 6 = 18. Plugging into the formula, we get (18 - 2 - 1) = 15, which is the error degrees of freedom. However, since this value is not provided among the answer choices, we can use the next closest value, which is 30 (choice C).

The College of Business Was Interested in Comparing the Interaction