Franklin Tooling, Inc., manufactures specialty tooling for firms in the paper-making industry. All of their products are engineer-to-order and so the company never knows exactly what components to purchase for a tool until a customer places an order. However, the company believes that weekly demand for a few components is fairly stable. Component 135.AG is one such item. The last 26 weeks of historical use of component 135.AG is recorded below.

Use OM Explorer’s Time Series Forecasting Solver to evaluate the following forecasting methods. Start error measurement in the fifth week, so all methods are evaluated over the same time interval. Use the default settings for initial forecasts.
i. Naïve (1-Period Moving Average)
ii. 3-Period Moving Average
iii. Exponential Smoothing, with a = .28
iv. Trend Projection with Regression
v. Which forecasting method should management use, if the performance criterion it choosesis:

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Week Demand Week Demand 132 136 134 106 10 120 3 12 134 13