Use the following information for questions:
A study compared weight loss among 5 different diet programs. A total sample size of 25 people was studied (5 people from each program) using one-way analysis of variance.
-The Error Sum of Squares is SS Error = 40. What is the Mean Square Error (MS Error)?
A) 2
B) 4
C) 8
D) None of the above.

Question

Use the following information for questions:
 A study compared weight loss among 5 different diet programs. A total sample size of 25 people was studied (5 people from each program) using one-way analysis of variance.
-The Error Sum of Squares is SS Error = 40. What is the Mean Square Error (MS Error)?
A) 2
B) 4
C) 8
D) None of the above.

Quizplus · Accepted Answer

The Mean Square Error (MS Error) is calculated by dividing the Error Sum of Squares (SS Error) by the degrees of freedom for error. With 5 groups and 25 total participants, the degrees of freedom for error is 25 - 5 = 20. Thus, MS Error = 40 / 20 = 2.

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