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The following gives the number of pints of type A blood used at Woodlawn 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. * Then, 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 a=.2