Nestl is a global leader in the food and beverage industry, consistently expanding its market share worldwide. Required: Prepare a seasonal sales forecasting model from

Nestlé is a global leader in the food and beverage industry, consistently expanding its market share worldwide.

Required: Prepare a seasonal sales forecasting model from the following historical sales data. Hint: use multiple regression analysis. Predict the next year's sales and compute standard errors of the forecasts.

Historical Sales Data
Sales, millions of liters	Year	Calendar month
5200	1	1
5250	1	2
5300	1	3
5350	1	4
5400	1	5
5450	1	6
5500	1	7
5550	1	8
5600	1	9
5650	1	10
5700	1	11
5750	1	12
5800	2	13
5850	2	14
5900	2	15
5950	2	16
6000	2	17
6050	2	18
6100	2	19
6150	2	20
6200	2	21
6250	2	22
6300	2	23
6350	2	24
6400	2	25
6450	3	26
6500	3	27
6550	3	28
6600	3	29
6650	3	30
6700	3	31
6750	3	32
6800	3	33
6850	3	34
6900	3	35
6950	3	36