Question

Experimental Design and Analysis IV: Complex Experimental Designs 343 What conclusions can be drawn from the F-ratios? a. c. If your instructor wants you to calculate the sums of squares, use the preceding data to do so.) d. What is the effect size, and what does this mean? b. Are the values of Fobt significant at ? = .05? e. Graph the means. At ? = .01 ?

Do not need to calculate sums of means OR e. (graph the means)

Answer 1

Anova: Two-Factor With Replication
SUMMARY	women	men	Total
2 hours
Count	5	5	10
Sum	59	59	118
Average	11.8	11.8	11.8
Variance	0.7	0.7	0.622222222
4 hours
Count	5	5	10
Sum	45	45	90
Average	9	9	9
Variance	2	1	1.333333333
6 hours
Count	5	5	10
Sum	32	33	65
Average	6.4	6.6	6.5
Variance	0.8	1.8	1.166666667
Total
Count	15	15
Sum	136	137
Average	9.066666667	9.133333333
Variance	6.20952381	5.838095238
ANOVA
Source of Variation	SS	df	MS	F	P-value	F crit
practice	140.6	2	70.3	60.25714286	4.40155E-10	3.402826105
gender	0.033333333	1	0.033333333	0.028571429	0.867188941	4.259677273
gender * practice	0.066666667	2	0.033333333	0.028571429	0.971865879	3.402826105
error	28	24	1.166666667
Total	168.7	29

Only practice is significant at both alpha values

rest are not significant at both alpha.

there is significant difference in different type of practice