Use the following information for questions:
A study compared grade point averages (GPA) for students in a class: students were divided by 6 locations where they usually sat during lecture (i.e. left or right front, left or right center, left or right rear). A total sample size of 12 students was studied (2 students from each section) using one-way analysis of variance.
-The Error Sum of Squares is SS Error = 50. What is the Mean Square Error (MS Error)?
A) 4.17
B) 8.33
C) 10.00
D) None of the above.

Question

Use the following information for questions:
 A study compared grade point averages (GPA) for students in a class: students were divided by 6 locations where they usually sat during lecture (i.e. left or right front, left or right center, left or right rear). A total sample size of 12 students was studied (2 students from each section) using one-way analysis of variance.
-The Error Sum of Squares is SS Error = 50. What is the Mean Square Error (MS Error)?
A) 4.17
B) 8.33
C) 10.00
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 associated with the error. In a one-way ANOVA with a total sample size of 12 and 6 groups, the degrees of freedom for error is the total sample size minus the number of groups, which is 12 - 6 = 6. Therefore, MS Error = SS Error / df_error = 50 / 6 = 8.33.

Use the Following Information for Questions