Tutorial 6 Time Series Data Analysis Question: Monthly sales (in tons) of a particular vegetable from 2015 to 2017 are i
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Tutorial 6 Time Series Data Analysis Question: Monthly sales (in tons) of a particular vegetable from 2015 to 2017 are i
Question: Monthly sales (in tons) of a particular vegetable from 2015 to 2017 are indicated in the following table. Monthly sales y 1 2 3 4 4 5 6 ON 7 8 9 10 11 12 201 5 201 Year 500 480 462 / 683 / 801 836 | 1178 | 1958 750 | 519 442 438 584 468 481 112 822 / 818 / 1250 1521 705 496 428 416 575 501 476 699 198 842 | 1232 1542 / 132 506 | 435 427 6 201 7 Seasonal Index(%) (1) Calculate the seasonal index (Assume there is no trend in this dataset): (2) Assume that the monthly sale for January 2018 is 590 tons, please make a prediction of the monthly sales for February 2018 and March 2018.
Tutorial 6 Time Series Data Analysis