Based on your work in the previous three problems, a. Determine a seasonally adjusted linear trend forecasting
Question:
a. Determine a seasonally adjusted linear trend forecasting model. Compare this model with an unadjusted linear trend model. Use both models to forecast Trans sales for period 49.
b. Which of the two models developed has the lower MAD and lower MSE ?
Store, which has maintained monthly sales records for the past 48 months, with the following results:
Transcribed Image Text:
1457(6) 4( 855 S( 2 7 7 4 6 4 35 4 4 3 3 2 3 3 3 3 3 3 3 3 1-901 678 7 6 933 1469 () 1 2 3 4 5 6 7 8 Month Sales (S) 32.400 35,600 31,200 34.600 36.800 35,700 Month Sales (S) 37.500 40,000 43.200 46.700 50.100 52,100 37 (Jan) 38 39 43 46 48
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a The output for both models is shown The forecast for month 49 for both models is Unadjusted 234245...View the full answer
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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