Hi, I need help solving for the six missing values. Thank you.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter13: Regression And Forecasting Models
Section13.7: Exponential Smoothing Models
Problem 26P: The file P13_26.xlsx contains the monthly number of airline tickets sold by the CareFree Travel...
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Hi, I need help solving for the six missing values. Thank you.

A large Portland manufacturer wants to forecast demand for a piece of pollution-control equipment. A
review of past sales (A₁), as shown below, indicates that an increasing trend is present. Smoothing
constants are assigned the values of α = 0.20 and ß = 0.4. The firm assumes the initial forecast for
month 1 (F₁) was 9.00 units and the trend over that period T₁ was 2.00 units.
Using trend-adjusted exponential smoothing, Forecasts (F₂), Trend (7+), and Forecasts Including
Trend (FIT+) for months 1 through 4 have already been developed and are provided below. Continue
with the process and determine F₁, T₁, and FIT, for months 5 and 6 (round your responses to two
decimal places):
Month Actual Demand
(t)
1
234
2
4
5
6
7
8
9
10
(A₂)
10.0
16.0
23.0
20.0
25.0
23.0
30.0
26.0
38.0
Forecast
(F₂)
9.00
10.80
13.38
17.05
Trend
(Tt)
2.00
1.92
2.18
2.78
Forecast Including
Trend (FIT₂)
11.00
12.72
15.56
19.83
I
Transcribed Image Text:A large Portland manufacturer wants to forecast demand for a piece of pollution-control equipment. A review of past sales (A₁), as shown below, indicates that an increasing trend is present. Smoothing constants are assigned the values of α = 0.20 and ß = 0.4. The firm assumes the initial forecast for month 1 (F₁) was 9.00 units and the trend over that period T₁ was 2.00 units. Using trend-adjusted exponential smoothing, Forecasts (F₂), Trend (7+), and Forecasts Including Trend (FIT+) for months 1 through 4 have already been developed and are provided below. Continue with the process and determine F₁, T₁, and FIT, for months 5 and 6 (round your responses to two decimal places): Month Actual Demand (t) 1 234 2 4 5 6 7 8 9 10 (A₂) 10.0 16.0 23.0 20.0 25.0 23.0 30.0 26.0 38.0 Forecast (F₂) 9.00 10.80 13.38 17.05 Trend (Tt) 2.00 1.92 2.18 2.78 Forecast Including Trend (FIT₂) 11.00 12.72 15.56 19.83 I
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