The following gives the number of pints of type A blood used at Woodiawn Hospital in the past 6 weeks

QUESTION:

The following gives the number of pints of type A blood used at Woodiawn Hospital in the past 6 weeks:

Week Of ____________ Pints Used

August 31 ……………………… 360

September 7 …………………… 389

September 14 ………………….. 410

September 21 ………………….. 381

September 28 ………………….. 368

October 5 ………………………. 374

(a) Forecast the demand for the week of October 12 using a 3-week moving average.

(b) Use a 3-week weighted moving average, with weights of .1, .3, and .6, using .6 for the most recent week. Forecast demand for the week of October 12.

(c) Compute the forecast for the week of October 12 using exponential smoothing with a forecast for August 31 of 360 and α = .2.

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