Jsing trend-adjusted exponential smoothing, Forecasts (F,), Trend (T,), and Forecasts Including Trend (FIT,) for months 1 through 6 have already been developed an re provided below. Continue with the process and determine F, T, and FIT, for months 7 through 9 (round your responses to two decimal places):
Jsing trend-adjusted exponential smoothing, Forecasts (F,), Trend (T,), and Forecasts Including Trend (FIT,) for months 1 through 6 have already been developed an re provided below. Continue with the process and determine F, T, and FIT, for months 7 through 9 (round your responses to two decimal places):
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Transcribed Image Text:A large Portland manufacturer wants to forecast demand for a piece of pollution-control equipment. A review of past sales (A,), as shown below, indicates that an
increasing trend is present. Smoothing constants are assigned the values of a = 0.20 and ß = 0.4. The firm assumes the initial forecast for month 1 (F,) was 9.00 units
and the trend over that period T, was 2.00 units.
Using trend-adjusted exponential smoothing, Forecasts (F,), Trend (T,), and Forecasts Including Trend (FIT,) for months 1 through 6 have already been developed and
are provided below. Continue with the process and determine F,, T, and FIT; for months 7 through 9 (round your responses to two decimal places):
Trend
Forecast Including
Trend (FIT,)
Month
Actual Demand
Forecast
(t)
(A,)
(F;)
(T;)
1
10.0
9.00
2.00
11.00
2
17.0
10.80
1.92
12.72
3
23.0
13.58
2.26
15.84
4
20.0
17.27
2.83
20.10
22.90
26.31
25.0
20.08
2.82
23.0
23.32
2.99
7
31.0
8
26.0
9
35.0
10
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