9

-2.1566918346241 0.05201788

0.13864841113199 0.89202754

2.1459983234395 0.05302064

Source	SS	df	MS	F	sig.
between	318.73523809524	2	159.36761904762	3.6127639362667	0.047961215160728
within	794.02285714286	18	44.112380952381
TOTAL	1112.7580952381	20

Section 1	Section 2	Section 3
42.7	66.8	42.1
45	52.6	51
53.6	71.2	47.1
47	52	50.3
46.6	50.5	50.9
48.5	50.4	39.2
56.5	52.8	56.5

Group	Exam Grades
1	42.7
1	45
1	53.6
1	47
1	46.6
1	48.5
1	56.5
2	66.8
2	52.6
2	71.2
2	52
2	50.5
2	50.4
2	52.8
3	42.1
3	51
3	47.1
3	50.3
3	50.9
3	39.2
3	56.5

$\displaystyle {\left[\begin{array}{ccc} {42.7}&{66.8}&{42.1}\\{45}&{52.6}&{51}\\{53.6}&{71.2}&{47.1}\\{47}&{52}&{50.3}\\{46.6}&{50.5}&{50.9}\\{48.5}&{50.4}&{39.2}\\{56.5}&{52.8}&{56.5}\end{array}\right]}$