MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Consider the following time series data.

 

Week 1 2 3 4 5 6
Value 20 12 16 10 19 13

 

Using the naïve method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy.

 

  1. Mean absolute error. Round your answer to one decimal place.



  2. Mean squared error. Round your answer to one decimal place.



  3. Mean absolute percentage error. Round your answer to two decimal places.



  4. What is the forecast for week 7? Round your answer to the nearest whole number.

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