The following gives the number of pints oftype A blood used at Woodlawn Hospital

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 28 401 October 5 382 (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

The forecasts are calculated as follows: a) (382 + 401 + 381) / 3 = 388 b) 0.6*382 + 0.3*401 + 0.1*381 = 388 c) Pints Forecasts 360 389    365.8 410    374.6 381    375.9 401    380.9 392    381.1 Exponential forecast = 381

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