Two hundred observations of a mean zero AR(2)(2) model produced the following sample variance and sample ACFs: 1199[t=1200(Yt-Y-)2-1.15.1199[t=1200(Yt-Y)2=1.15. and r1=0.427, r2=0.475.r1=0.427, r2=0.475. Find the methods of moment estimators of p1,0201,02 and 2e0e2.

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