Question: Please find the question attached in the picture. Looking forward to your answer 3. The sample ACF and PACF plots of a mean-corrected time series

Please find the question attached in the picture. Looking forward to your answer

Please find the question attached in the picture. Looking forward to your

3. The sample ACF and PACF plots of a mean-corrected time series of size 100 are shown below. ACE Moreover, it is given that sample autocovariances p(0) = 1382.2, p(1) = 1114.4, p(2) = 591.73, and p(3) = 96.216. (A) (1 point) Based on the sample ACF and PACF plots, explain why an AR(2) model, x - Pilt-1 - $2xt-2 = we, (wal-did N(0.o'), is plausible for the mean-corrected data. (B) (3 points) Find the Yule Walker estimates of d, $2, and of in the AR(2) model. (C) (2 points) Assuming that the data really are a realization of an AR(2) process, find 95% confidence intervals for o, and $2, respectively. (D) (3 points) Use the Durbin-Levinson algorithm to compute the sample partial autocorrelations $11. $22, and #33 of the series. Is the value of $3 compatible with the hypothesis that the data are generated by an AR(2) process? (Use a significance level of 0.05.)

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