he time series has the whole autocorrelations clearly outsid

he time series has the whole autocorrelations clearly outside the 95% confidence band, which indicates that you reject H0: 1 = 0 and H0: 2 = 0. Conduct a joint test H0: 1 = …= 20= 0, which gives the Q-stat of 4221.3 with the p-value of 0.000. Since the p-value is less than 0.05, you will reject H0 at 5% level of significance. SACF’s which decline to 0 very slowly. Hence, the test shows strong evidence that the time series a non-stationary series.

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