Question

1. Below is the board exam result of 4 single examinees (S) and 6 married examinees (M). Correlate civil status and board exam results. Interpret.

Examinees	1	2	3	4	5	6	7	8	9	10
Civil Status	S	M	M	S	S	M	M	M	S	M
Exam Results	90	80	85	87	88	90	75	80	95	87

2. Consider the grades of 6 students subjected to three types of teaching methods. Is there a significant difference in the grades of the 6 students who were subjected to three types of teaching methods at 0.05 level of significance?

	Method A	Method B	Method C
Student 1	84	70	90
Student 2	90	75	95
Student 3	92	90	100
Student 4	96	80	98
Student 5	84	75	88
Student 6	88	75	90

Answer 1

II)

Using Excel

data -> data analysis -> anova one way

Using Anova one way

Anova: Single Factor
SUMMARY
Groups	Count	Sum	Average	Variance
Method A	6	534	89	22
Method B	6	465	77.5	47.5
Method C	6	561	93.5	23.9
ANOVA
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	817	2	408.5	13.12099	0.000508	3.68232
Within Groups	467	15	31.13333
Total	1284	17

p-value = 0.0005 < alpha

hence we reject the null hypothesis

we conclude that the model is significant