Question: PLEASE include how excel formulas and commands Month 1 2 3 4 5 6 7 8 9 10 Demand 487 602 551 587 509 457

PLEASE include how excel formulas and commands

Month 1 2 3 4 5 6 7 8 9 10 Demand 487 602 551 587 509 457 349 386 490 507 516 573 Month 13 14 15 16 17 18 19 20 Demand 528 622 608 592 536 504 461 391 437 503 562 570 Month 25 26 27 28 29 30 31 32 33 34 35 36 Demand 517 595 619 602 545 486 431 416 444 492 538 575 21 22 11 23 12 24 a. Compute the 3-month moving average of this demand. Does this series still show seasonal variation? b. Compute the 6- and 12-month moving averages of this demand. C. Plot the original data and the three moving averages. (use an Excel spreadsheet!)

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