The following gives the number of pints oftype A blood used at Woodlawn Hospital
ID: 1233395 • Letter: T
Question
The following gives the number of pints oftype A blood used at Woodlawn Hospital in the past 6weeks.
Forecast the demand for the week of October12 using a 3-week moving average.
pints
Round your answer to 1 decimal place; forexample,123.4 .
Use a 3-week weighted moving average, withweights of .1, .3, and .6, using .6 for the most recent week.Forecast demand for the week of October 12.
pints
Round your answer to 1 decimal place; forexample,123.4 .
Round your answer to 1 decimal place; forexample,123.4 .
The following gives the number of pints oftype A blood used at Woodlawn Hospital in the past 6weeks.
Week Of Pints Used August 31 360 September 7 389 September 14 410 September 21 381 September 28 371 October 5 378 (a) Forecast the demand for the week of October12 using a 3-week moving average.
pints
Round your answer to 1 decimal place; forexample,123.4 .
(b)Use a 3-week weighted moving average, withweights of .1, .3, and .6, using .6 for the most recent week.Forecast demand for the week of October 12.
pints
Round your answer to 1 decimal place; forexample,123.4 .
(c) Compute the forecast for the week of October12 using exponential smoothing with a forecast for August 31 of 360and .
pints
Round your answer to 1 decimal place; forexample,123.4 .
Explanation / Answer
a) The 3-week moving average is 377. (378 + 371 + 381) / 3 = 377 b) The weighted moving average is 376. 0.6*378 + 0.3*371 + 0.1*381 = 376 c) The exponentially smoothed forecast is 376, and it's calculatedas such: Pints Forecast 360 389 365.8 = 0.2*389 + 0.8*360 410 374.6 381 375.9 371 374.9 378 375.5
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