Question
The product is designed to improve the night sleep, so the company is guessing that sales of the product is somewhat related to sleeping pattern
The product is designed to improve the night sleep, so the company is guessing that sales of the product is somewhat related to sleeping pattern of customers over the days of the week.Before mass production of the product, Eli Orchid has market tested Orchid Relief in only Orange County over the past 8 weeks. The weekly demand is recorded. Eli Orchid is now trying to use the sales pattern over the past 8 weeks to predict sales in US for the upcoming few weeks, especially for days 57 and 60. An accurate forecast would be much helpful in arrangements for the company's production processes and design of price promotions over each week.
# of days Daily Demand
1 297
2 293
3 327
4 315
5 348
6 447
7 431
8 283
9 326
10 317
11 345
12 355
13 428
14 454
15 305
16 310
17 350
18 328
19 366
20 460
21 427
22 291
23 325
24 354
25 322
26 405
27 442
28 450
29 318
30 298
31 355
32 355
33 374
34 447
35 463
36 291
37 319
38 333
39 339
40 416
41 475
42 459
43 319
44 326
45 356
46 340
47 395
48 465
49 453
50 307
51 324
52 350
53 348
54 384
55 474
56 485
Answer the following (show working to get a good rating):
1. How many seasons are in each repeating cycle?
2. To make a forecast of day 60, what is the seasonal factor for this day?
3. Looking at the deseasonalized time series, what is the slope of a linear time trend in the deseasonalized data?
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