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:

Spermatozoa

Male reproductive cells, or sperm, responsible for fertilizing the female ovum.

Cryptorchidism

A condition where one or both of the testes fail to descend from the abdomen into the scrotum in male infants.

Balanitis

Inflammation of the head (glans) of the penis, often due to infection.

Glans Penis

The sensitive bulbous structure at the distal end of the penis.