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The sale of NationalTires tire repair product for the past 10 months is as shown below. If NationalTire uses 3- month moving average to forecast

The sale of NationalTires tire repair product for the past 10 months is as shown below. If NationalTire uses 3- month moving average to forecast sales:

Month 1 2 3 4 5 6 7 8 9 10 Sales 175 178 179 178 179 181 183 190 195 194

a. What are the forecasts for months 4-11?

b. What is the resulting MAE, MSE and MAPE values?

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