The 10-year historical demand data for a part is presented as follows: Determine the forecast for year

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The 10-year historical demand data for a part is presented as follows:

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Determine the forecast for year 11 using the following forecasting approaches:

a. Simple average

b. Simple 4-period moving average

c. Weighted 4-period moving average with: \(\alpha_{1}=0.4, \alpha_{2}=0.3, \alpha_{3}=0.2, \alpha_{4}=0.1\)

d. Exponentially weighted moving average with \(\alpha=0.75\)

e. Regression model

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