SCENARIO 16-13 Given Below Is the Monthly Time Series Data for U.S.retail

question 19

Short Answer

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 1^st 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 your forecast for the 13^th month using the exponential- trend model?

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Definitions:

Dissociative Disorders

Mental disorders that involve a disconnection and lack of continuity between thoughts, memories, surroundings, actions, and identity.

Somatoform Disorders

A group of disorders characterized by physical symptoms that suggest physical illness or injury, but which cannot be fully explained by a medical condition, substance use, or another mental disorder.

Psychosomatic Disorders

Health problems that are aggravated or primarily caused by psychological factors, such as stress and anxiety, manifesting through physical symptoms.

Anxiety Disorders

A group of mental disorders characterized by significant feelings of anxiety and fear.