moving average model, Electrical Engineering

Altavox is a manufacturer and distributor of a lot of electronic instruments and devices, including digital/analog multimeters, function generators, oscilloscopes, frequency counters and other test equipment and calculating equipment.  Altavox sells a line of test meters that are popular with professional electricians.  The model VC202 is sold by six distributors to retail stores in the United States.  These distributors are located in Atlanta, Boston, Dallas and Los angles and have been selected to serve dissimilar region in the country.

The Model VC202 has been a steady seller over the years because of its reliability and rugged construction.  Altavox does not consider this a seasonal product, but there is some variability in demand.  Demand for the product over the past 13 weeks is shown in the following table.

946_55.png

 

1. Consider using a easy moving average model. Experiment with models using five weeks and 3 weeks past data. The past data in every region is give below. Evaluate the forecasts that would have been made over the past 13 weeks using the mean absolute deviation and tracking signal as criteria.

1606_55.png

2.  Next, consider using a easy exponential smoothing model. In your analysis, test 2 alpha values, .2 and .4. Use the similar criteria for evaluating the model as in part 1. Suppose that the initial previous forecast for the model using an alpha value of .2 is the past 3-week average. For the model using an alpha of .4 suppose that the previous forecast is the past five-week average.

 

 

 

 

Posted Date: 3/18/2013 5:27:18 AM | Location : United States







Related Discussions:- moving average model, Assignment Help, Ask Question on moving average model, Get Answer, Expert's Help, moving average model Discussions

Write discussion on moving average model
Your posts are moderated
Related Questions
Q. Purpose of Customer Review in project management? The Customer in conjunction with the Project Manager/ Engineer decides the timing of the IFA review. This review is cond

Parallel Operation of Interconnected Synchronous Generators In order to assure continuity of the power supplywithin prescribed limits of frequency and voltage at all the load p

Q. Assuming the diode to obey I = IS (e V/0.026 -1), calculate the ratio V/I for an ideal diode with I S = 10 -13 A for the applied voltages of -2,-0.5, 0.3, 0.5, 0.7, 1.0, and

3-Phase 4 Wire Meters with CT and MD If load is commonly more than 50 A, CT operated meters should be used. It is to be remembered that CTs should be properly selected for acc

Discuss in detail the several energy resources and their availability. How does a Rankine cycle differ from a modified Rankine cycle? Write down the mathematical expression of m

Develop a PSpice program and use PROBE to obtain Bode plots of the magnitude and phase of the transfer function ¯V out / ¯V in for the high-pass ?lter circuit shown in Figure (a)

Explain what is meant by a datapath and a datapath logic cell illustrating your answer by reference to a suitable function using diagrams as appropriate. Show using a diagram ho

Question: General EMC Knowledge (a) Give 2 reasons for the augmentation of electromagnetic radiation in urban regions. (b) Pointe aux Diable bears its name due to the a

Write an Assembly language program that will produce a PWM signal with a desired average voltage. The user selects the desired average voltage by pressing keys 1 - 4. If the