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If t is white noise, what is the best forecast for _(t+1)? A. 0 B. _t C. -_t D.average of past _t E. a moving

If t is white noise, what is the best forecast for _(t+1)? A. 0 B. _t C. -_t D.average of past _t E. a moving average forecast _t+(1-)_(t-1), where is chosen optimally

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