Question

1. You have 4 groups with an overall sample size of n = 20. The F critical value at the alpha = 0.05 level of significance is 3.24. Complete the following 1 factor ANOVA table below:

ANOVA table
Source	SS	df	MS	F
Treatment	258.00	________	________	________
Error	164.80	________	________
Total	422.80

Is there a significant difference (α=0.05) between at least two of the four groups for the analysis in question 1 (above)? (circle one) YES NO

2. Use the following data set to complete the ANOVA table and answer the questions.

Group 1	Group 2	Group 3
2	2	3
5	5	4
4	2	8
7	3	7
6	1	7

ANOVA table
Source	SS	df	MS	F	p-value
Treatment	________	________	________	________	________
Error	________	________	________
Total	________

Is there a significant difference (α=0.05) between at least two of the four groups for the analysis in question 1 (above)? (circle one) YES NO

Confidence interval for Group 1 ( _________ , _________)

Confidence interval for Group 2 ( _________ , _________)

Confidence interval for Group 3 ( _________ , _________)

Is Group 1 significantly different from Group 2 at the α=0.05 level of significance YES NO

Is Group 1 significantly different from Group 3 at the α=0.05 level of significance YES NO

Is Group 2 significantly different from Group 3 at the α=0.05 level of significance YES NO

Answer 1