Asked by CorporalSalmonMaster8

# What is the value of the autocorrelation function of lag order 0?...

- What is the value of the autocorrelation function of lag order 0?

a) 1

b)Above 0.95

c)0

2.What is the value of partial autocorrelation function of lag order 1?

a)Equal to the autocorrelation of lag order 1

b)1

c)0

3.If the ACF is seen to be non-significant after lag 2, then an appropriate model will be?

a)AR(2) or ARIMA (2,0,0)

b)MA(2) or ARIMA (0,0,2)

c)ARIMA(2,2,2)

4.A non-stationary time series with no significant ACF or PACF may be modelled by

a)ARIMA (0, 1, 0)

b)ARIMA (0, 0, 0)

c)ARIMA (0, k, 0), where k is the order of differencing to make the series stationary

d)ARIMA (1, 1, 1)

Answered by samk3214

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