' 1 1 ' 1 1 i 1 
30.00 37.50 45.00 52.50 60.00 
73T 
0.00 7.50 45.00 22.50 
Fig. 5.33a. Theoretical. 
1.00 
0.50 
0.00 
0.00 750 15.00 22.50 30.00 37.50 45.00 52.50 60.00 
2T 
Fig. 5.33b. Estimated. 
Fig. 5.33. Autocorrelation coefficient for MA(2) process 
X,=€:+0.2€4,+08€.0, €1: N[O, 1]. 
164 
