Question

Recitation Exercise: Ch.12 -ANOVA Answer the following questions. You are allowed to work in groups, but everyone must show ALL of their work. Round to the hundredth decimal place at every step and feel free to attach an additional sheet of paper. 1.) The data below are from an independent-measures experiment comparing three different treatment conditions. Group 3 14 18 12 16 13 Group 1 10 Group 2 10 13 12 17 Ti = n2 M3 18 2xi2 SSI x450 1089 ss2 = SSWithin SSBetween-Ix Die ΣΧ SSTotalー SSTatal **Check your SSToal by seeing if SSBerwecan-Tx+ SSwithin

Answer 1

Answer:

	Group1	Group2	Group3	Total
	10	8	14
	11	10	18
	8	9	12
	12	13	16
	17	6	13
n	5	5	5
T	58	46	73	177
T^2/n	672.8	423.2	1065.8	2161.8
$\sum x^2$	718	450	1089	2257
SS	45.20	26.80	23.20	95.20
SSwithin	95.20

G=177    G^2 = 31329

N=15

G^2/N = 31329/15 = 2088.60

SSbetween-tx = 2161.80-2088.60 =73.2

$\sum x^2 = 2257$

SS total = 2257-2088.60 =168.4