Question

An educator wants to evaluate four different methods aimed at reducing the time children spend "off task" in the classroom. To test these methods, she implements one method in each of four similar classrooms and records the time spent off task (in minutes) in each classroom. The results are given in the table.

Classroom Method
A	B	C	D
4	3	3	3
2	5	0	4
0	0	6	4
6	2	5	4
1	4	4	5
4	1	5	2
1	0	4	2
3	1	0	2
2	5	3	4

(a) Complete the F-table. (Round your answers to two decimal places.)

Source of Variation	SS	df	MS	F
Between groups
Within groups (error)
Total

Answer 1

The statistical software output for this problem is:

Hence,

a) F - table will be:

Source of Variation	SS	df	MS	F
Between groups	7.33	3	2.44	0.74
Within groups (error)	106.22	32	3.32
Total	113.56	35