A Concise Intro To Logic
12th Edition
ISBN: 9781305147775
Author: Hurley
Publisher: Cengage
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a) Using a weighted moving average with three periods, determine the sales for day 15. Use 3, 2, and 1 for the weights of the most recent, second most recent, and third most recent periods, respectively
b) Find the MAD, MSE and MAPE
b) Use exponential smoothing with a smoothing constant of 0.50 to forecast the sales (Assume that last period’s forecast for period 1 is equal to actual to begin the procedure (Ft1=Yt1). Which method do you think is best? Is this an improvement over the weighted average- use MAD only
Explain Fixed–Time Period Models?
Civil engineering consulting fi rms that provide ser-vices to outlying communities are vulnerable to a
number of factors that affect the fi nancial conditionof the communities, such as bond issues and real
estate developments. A small consulting fi rm en-tered into a fi xed-price contract with a large devel-oper, resulting in a stable income of $260,000 per
year in years 1 through 3. At the end of that time, a
mild recession slowed the development, so the par-ties signed another contract for $190,000 per year
for 2 more years. Determine the present worth of thetwo contracts at an interest rate of 10% per year.
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- What are the benefits of exponential smoothing over the average and weighted average movement?arrow_forwardConsider the following time series: Period 1 2 3 4 5 6 7 8 Demand 15 24 26 33 20 22 27 20 Calculate the exponentially smoothed value for period 1 using W (smoothing coefficient) = 0.3.arrow_forwardWhat is the fundamental distinction between a weighted average travelling and exponential smoothing?arrow_forward
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