Sales Month (000 units) Feb. 19 Mar. 18 Apг. May 15 20 Jun. 18 Jul. 22 Aug. 20 a. Plot the monthly data on a sheet of graph paper. b. Forecast September sales volume using each of the following: (1) The naive approach. (2) A five month moving average. (3) A weighted average using .60 for August, .30 for July, and .10 for June. (4) Exponential smoothing with a smoothing constant equal to .20, assuming a a March forecast of 19(000). (5) A linear trend equation. c. Which method seems least appropriate? Why? (Hint: Refer to your plot from part a.) d. What does use of the term sales rather than demand presume?

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Answer c and d only

Sales
Month
(000 units)
Feb.
19
Mar.
18
Apr.
15
May
20
Jun.
18
Jul.
22
Aug.
20
a. Plot the monthly data on a sheet of graph paper.
b. Forecast September sales volume using each of the following:
(1) The naive approach.
(2) A five month moving average.
(3) A weighted average using .60 for August, .30 for July, and .10 for June.
(4) Exponential smoothing with a smoothing constant equal to .20, assuming a a March
forecast of 19(000).
(5) A linear trend equation.
c. Which method seems least appropriate? Why? (Hint: Refer to your plot from part a.)
d. What does use of the term sales rather than demand presume?
Transcribed Image Text:Sales Month (000 units) Feb. 19 Mar. 18 Apr. 15 May 20 Jun. 18 Jul. 22 Aug. 20 a. Plot the monthly data on a sheet of graph paper. b. Forecast September sales volume using each of the following: (1) The naive approach. (2) A five month moving average. (3) A weighted average using .60 for August, .30 for July, and .10 for June. (4) Exponential smoothing with a smoothing constant equal to .20, assuming a a March forecast of 19(000). (5) A linear trend equation. c. Which method seems least appropriate? Why? (Hint: Refer to your plot from part a.) d. What does use of the term sales rather than demand presume?
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