Month Sales Month Sales Month Sales 345 13 415 25 344 411 14 395 26 286 3 266 15 298 27 455 347 506 4 16 377 28 634 17 418 29 502 6. 278 18 522 30 388 7 411 19 421 31 427 8. 510 20 384 32 561 198 21 455 33 447 10 387 22 506 34 395 11 344 23 478 35 414 12 412 24 613 36 522

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 36E
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The Beaver Creek Pottery Company sells bowls and mugs, hand-made by Native American artisans,
at a craft store and through a Web site. Making these items requires a special type of clay
and a large amount of individual person-hours, so for planning purposes, the company would
like to forecast future demand, specifically through its Web site, which has increasingly become
the primary source of sales. Following is the company’s Web site demand (in items sold) for the
past 36 months: Develop a linear trend forecast model, an exponentially smoothed model (a = 0.20), and a
5-month moving average forecast model and indicate which one you think should be used to
forecast Web site demand. 

Month
Sales
Month
Sales
Month
Sales
345
13
415
25
344
411
14
395
26
286
3
266
15
298
27
455
347
506
4
16
377
28
634
17
418
29
502
6.
278
18
522
30
388
7
411
19
421
31
427
8.
510
20
384
32
561
198
21
455
33
447
10
387
22
506
34
395
11
344
23
478
35
414
12
412
24
613
36
522
Transcribed Image Text:Month Sales Month Sales Month Sales 345 13 415 25 344 411 14 395 26 286 3 266 15 298 27 455 347 506 4 16 377 28 634 17 418 29 502 6. 278 18 522 30 388 7 411 19 421 31 427 8. 510 20 384 32 561 198 21 455 33 447 10 387 22 506 34 395 11 344 23 478 35 414 12 412 24 613 36 522
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