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Please show step by step working to questions below: Question 22 4 / 4 pts The sample autocovariance function of a time series {Xt} ,

Please show step by step working to questions below:
Question 22 4 / 4 pts The sample autocovariance function of a time series {Xt} , evaluated at lags h = 0, 1, 2, is y(0) = 2.05(1) = 1.666, and 5(2) = 1.233. What is the sample partial autocorrelation function at lag 1? -0.294 O -2.001 O 1.593 Correct! O 0.833

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