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lowing data represents of nts sity cafeteria for a period of 9 days during the ex ing Saturday and Sunday. Mon Tue Wed Thu Fri Mon T FFFFF 160 180 170 160 150 160 1 4 8 ing a smoothing coefficient of W = 0.2 exponent I plot the results.

lowing data represents of nts sity cafeteria for a period of 9 days during the ex ing Saturday and Sunday. Mon Tue Wed Thu Fri Mon T FFFFF 160 180 170 160 150 160 1 4 8 ing a smoothing coefficient of W = 0.2 exponent I plot the results.

MATLAB: An Introduction with Applications
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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(a) The following data represents the number of students who took lunch at the university cafeteria for a period of 9 days during the examination period excluding Saturday and Sunday. Day Mon Tue Wed Thu Fri Mon Tue Wed Thu FFFFFFF" No. of 160 180 170 160 150 160 160 150 160 students 4 2 8 8 6 2 Using a smoothing coefficient of W = 0.2 exponentially smooth the series and plot the results. (1) (ii) Compute the exponentially smoothed forecast for Friday second week. (b) Consider the following ARMA model given as 1. e, +e,1 +-e, 2 =r, +-r 4 t-1 2 1-1 Determine if the process is (1) (i) Stationary (ii) invertible
Transcribed Image Text:(a) The following data represents the number of students who took lunch at the university cafeteria for a period of 9 days during the examination period excluding Saturday and Sunday. Day Mon Tue Wed Thu Fri Mon Tue Wed Thu FFFFFFF" No. of 160 180 170 160 150 160 160 150 160 students 4 2 8 8 6 2 Using a smoothing coefficient of W = 0.2 exponentially smooth the series and plot the results. (1) (ii) Compute the exponentially smoothed forecast for Friday second week. (b) Consider the following ARMA model given as 1. e, +e,1 +-e, 2 =r, +-r 4 t-1 2 1-1 Determine if the process is (1) (i) Stationary (ii) invertible
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