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SCENARIO 16-13
Given below is the monthly time series data for U.S.retail sales of building materials over a specific year.
The results of the linear trend,quadratic trend,exponential trend,first-order autoregressive,second-order autoregressive and third-order autoregressive model are presented below in which the coded month for the 1st month is 0:
Linear trend model:
Quadratic trend model:
Third-order autoregressive::
Below is the residual plot of the various models:
-Referring to Scenario 16-13,what is the exponentially smoothed forecast for the 13th month using a smoothing coefficient of W = 0.25 if the exponentially smooth value for the 10th and 11th month are 9,477.7776 and 9,411.8332,respectively?
Forced Vital Capacity
The total volume of air that can be forcibly exhaled from the lungs after taking the deepest breath possible.
Lungs
Pair of respiratory organs in the chest of vertebrates where blood is oxygenated and carbon dioxide is removed.
Air
The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
Dysrhythmia
An irregularity in heart rhythm; also called arrhythmia.
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