Under the assumption of a level model, that is, show that the choice of a to...

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Under the assumption of a level model, that is, show that the choice of a to minimize x = a + S = (xj-a,) j=1-N+1 where x; is the actual demand in period j, is given by = (x+x-1+ = (x; + xx1 + ... +x-N+1)/N Under the assumption of a level model, that is, show that the choice of a to minimize x = a + S = (xj-a,) j=1-N+1 where x; is the actual demand in period j, is given by = (x+x-1+ = (x; + xx1 + ... +x-N+1)/N