1. Solve manually. The following gives the number of pints of type A blood used at Woodlawn Hospital in the past 6 weeks. Pints Used Week August 31 September 7 September 14 September 21 September 28 October 5 360 389 410 381 368 374 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 0.1, 0.3 and 0.6, using 0.6 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 c=0.2. d. Compute the MAD for the 3-week moving average, 3-week weighted moving average and exponential smoothing models above.

Practical Management Science
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Chapter2: Introduction To Spreadsheet Modeling
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1. Solve manually. The following gives the number of pints of type A blood used at
Woodlawn Hospital in the past 6 weeks.
Pints Used
360
Week
August 31
September 7
September 14
September 21
September 28
389
410
381
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 0.1, 0.3 and 0.6, using 0.6 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 c=0.2.
d. Compute the MAD for the 3-week moving average, 3-week weighted moving average
and exponential smoothing models above.
Transcribed Image Text:1. Solve manually. The following gives the number of pints of type A blood used at Woodlawn Hospital in the past 6 weeks. Pints Used 360 Week August 31 September 7 September 14 September 21 September 28 389 410 381 368 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 0.1, 0.3 and 0.6, using 0.6 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 c=0.2. d. Compute the MAD for the 3-week moving average, 3-week weighted moving average and exponential smoothing models above.
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