Question

The change in levels of free fatty acids (FFA) subjects who had been asked to under hypnosis. The mean FFA changes were x 2.699, X2 2.178, X3 Given that the covariance matrix of the stress differences yi Xi3 is were measured on 15 hypnotized experience fear, depression and anger effects while 2.558 XiXi2 and yiz Xi - s =[1.7343 1.1666] - 2.7733 1.1666 Test at the 0.05 level of significance whether each effect produced the same change in S FFA

Answer 1

VCGID=V - x7) VCR)) vla)co Vlri)) tv(ni2 - Vyiatv 23)VC) + v (r3) (P) Cov ul, gra) E(2)-E(yri)ECera) E i)-Ex)E(ar)-EiEia) +Elria)ftxi) 2699X2-8 VCu) .073 5 CurC4ili) [-1666 VOx = I 1666- 0073 .09 31 V -7343 V()+v(w2) = \7 343 -734 3-1-09 31 = VCra) 0.6412 Vtl) + v(xr3)R-2733 27733 VCGERD 2-7133 093) 1.6802 =)VCai)

Vde1) 5 1-093)IS 14 14 eC80.1 Cxta) .6412 X1S XIS 14 14 bacs-o VCxi3)X I-347 1at statuh featng dtuuna funsnut The O an FFt (hange Mrean FA r aapresion feas is 2.669- 2178 CX-R = 1-8 2 2) t 15 t t 0951lolt2

0-24 33 t 3 t,= 69332 known. table value The caltulatd valug of tGue t Cat s10s)ashoeking .(HOtalo4)taf-o3) at say thee inoSiniicant diff uena bet wen muans
each effect produced same FFA.