1.

Toyota Motors introduced a hybrid car Hybrid G in the U.S. market in 2014. In the first three years, the sales of the Hybrid G were strong, but the sales figures started to decline in 2017 following the introduction of a new hybrid model by Honda. Toyota is in critical need of a better forecasting method. They need your help to evaluate alternative forecasting methods and provide suggestions. The following table contains the past 6 months of sales data.

Note: Month 1 refers to sales made 6 months ago, month 6 refers to sales made last month.

Month	Sales / Demand
1	1443
2	1358
3	1342
4	1298
5	1277
6	1183

Use a 2-month simple moving average to forecast sales for months 3 to 7.

The forecast sales for month 3 (F₃) is .

The forecast sales for month 4 (F₄) is .

The forecast sales for month 5 (F₅) is .

The forecast sales for month 6 (F₆) is .

The forecast sales for month 7 (F₇) is .

Compute the forecast errors for months 3 to 6, and the corresponding Mean Absolute Deviation (MAD) and the Mean Squared Error (MSE) for those months.

The MAD of forecast errors for months 3 to 6 is .

The MSE of forecast errors for months 3 to 6 is