Calculate the mean absolute percentage error, Basic Statistics

Assignment Help:

Littlefield Laboratories is a state-of-the-art highly automated blood samples testing lab. The demand of blood sample testing for the previous 20 days (day 1 to day 20) are given in the EXCEL file "LF demand.xls" on Blackboard. You are asked to perform demand forecast for day 22. There are two steps to that end. First you need to choose a "best" forecasting model and, second, use that model to forecast demand on day 22. The manager does not specify which forecasting model you should use, so you need to compare different forecasting models to determine the appropriate one to use. You consider the following four models.

1215_Calculate the Mean Absolute Percentage Error.png

To see which model works the best, you need to compare their forecast accuracy for demand in the past. In other words, you compare their forecast accuracy for days 5 to 20 (comparing days 5 to 20 because you can derive forecasts for every model starting on day 5).

a. Please calculate forecasts and MAPE of each of the four forecasting models for days 5 to 20.

b. Please plot actual demand for days 1 to 20, forecasts of moving average for days 5 to 20 on the same chart in EXCEL. You should see that forecasts of moving average lag behind the trend.

c. Which forecasting model generates the smallest MAPE? You will pick that model to forecast demand for day 22 because historically it produces the smallest forecast error. Please forecast demand for day 22 using the model with the smallest MAPE.


Related Discussions:- Calculate the mean absolute percentage error

Cost inventory, how do I find the cost of inventory?

how do I find the cost of inventory?

Isotopes and Isotones and Isobars , Isotopes Elements having same atomic ...

Isotopes Elements having same atomic number Z, but different A mass number for example 126C, 146C and 11H 21H, 31H are isotopes of carbon and hydrogen. Isotones Elements havi

Total quality management, Statistical process control, a methodology used f...

Statistical process control, a methodology used for controlling and improving the outcomes of operational processes, has been in use for almost 100 years!  It was widely used in ma

Yujhug, An electron, an alpha-particle and a proton have the same kinetic e...

An electron, an alpha-particle and a proton have the same kinetic energy. Which one of these particles has the largest de-Broglie wavelength ?

Homophone disambiguation-unigram-bigram model , The BBC hosts a homophone q...

The BBC hosts a homophone quiz on its website; your task for this lab is to develop an automatic method for completing the quiz, with the aim being to get as high a score as possib

Measures of dispersion (variation), Measures of Dispersion (Variation) ...

Measures of Dispersion (Variation) A measure of dispersion is to measure the spread among values of observations in a data set. There are three commonly used measures of disper

Define Betterment, Define Betterment An inclusion created to, or modify cr...

Define Betterment An inclusion created to, or modify created in, an investment resource, other than servicing, that is estimated to improve its predicted useful life or to improve

Determine the approximate vertical reactions, 1. Use the portal method to d...

1. Use the portal method to determine the approximate vertical reactions. Circles represent pinned connections. 2. A steel 2" x 3" rectangular bar is 9' long (E = 29,000ksi

Regresion analysis, If the regression line is drawn as Y = C + 1075x, when ...

If the regression line is drawn as Y = C + 1075x, when X was 2 and y was 239, given that the intercept was 11. Calculate the residual

Limitation of the financial accounting, Limitation of the Financial Account...

Limitation of the Financial Accounting. There much limitation can be considered in case of the Financial Accounting but here we are discussing the main two limitations  It re

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd