Please correct answers for c and d Consider the following time series data.Week235Value181415121814Using the average of all the historical data as a forecast for the next period, compute the following. (Round your answers to two decimal places.)(a) mean absolute errorMAE - 2.66(b) mean squared erorMSE - 8.59(c) mean absolute percentage errorMAPE = 28.77X %(d) What is the forecast for week 7?15.1

Answered: Image /qna-images/answer/78e6863e-392b-4632-8856-545cd4a2a292.jpg

Answered: Consider the following time series…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose that historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the previous 6 months, in a sample of 115 new-car buyers, 46 have traded in their old car. To determine whether the proportion of new car buyers that trade in their old car has statistically significantly decreased, what is the p-value? (please round your answer to 4 decimal places)
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Consider the following time series data. Week 4 Value 18 14 15 12 18 14 Using the average of all the historical data as a forecast for the next period, compute the following. (Round your answers to two decimal places.) (a) mean absolute error MAE - 2.66 (b) mean squared error MSE - 8.59