Question

ACF for Q +- 1.96/T^0.5 - 1 III II LLLLLLLLL -- ------ 0.5 NE 8 10 1214 lag PACF for Q +- 1.96/T^0.5 --- 0.5 NF 6 8 1 10 10 1

  1. ARIMA (0,1,0)
  2. ARIMA (0,0,0)
  3. ARIMA (1,0,2)
  4. ARIMA (0,0,1)
  5. ARIMA (4,0,0)
0 0
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Answer #1

Answer:

The option a (i.e. ARIMA (0,1,0) is the correct answer. Because Autocorrelation Function (ACF) linearly decline at lag 1, with

many lags significant and Partial Autocorrelation Function (PACF) has a single significant peak at lag 1. Thus it is ARIMA (0,1,0) model.

Therefore, ARIMA (0,1,0) is the correct answer.

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ARIMA (0,1,0) ARIMA (0,0,0) ARIMA (1,0,2) ARIMA (0,0,1) ARIMA (4,0,0) ACF for Q +- 1.96/T^0.5 -...
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