Operations Management: Processes and Supply Chains, 12th Edition

Experiential Learning 8.1

Forecasting a Vital Energy Statistic

The following time-series data capture the weekly average of East Coast crude oil imports in thousands of barrels per day.

QUARTER 2 YEAR 1		QUARTER 3 YEAR 1		QUARTER 4 YEAR 1		QUARTER 1 YEAR 2
Week	Data	Week	Data	Week	Data	Week	Data
1	1,160	14	1,116	27	1,073	40	994
2	779	15	1,328	28	857	41	1,307
3	1,134	16	1,183	29	1,197	42	997
4	1,275	17	1,219	30	718	43	1,082
5	1,355	18	1,132	31	817	44	887
6	1,513	19	1,094	32	946	45	1,067
7	1,394	20	1,040	33	725	46	890
8	1,097	21	1,053	34	748	47	865
9	1,206	22	1,232	35	1,031	48	858
10	1,264	23	1,073	36	1,061	49	814
11	1,153	24	1,329	37	1,074	50	871
12	1,424	25	1,096	38	941 ...