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

question 101

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 the value of the t test statistic for testing the appropriateness of the second-order autoregressive model?

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Definitions:

Supply

The total quantity of a product or service that is available to consumers at a given price level.

Wage Increase

The rise in the hourly, daily, or monthly pay rate for workers, often sought after by employees and unions.

Employment in Steel Industry

Refers to the workforce engaged in the production and processing of steel, an important sector for many economies.

Elastic Demand

A situation where the quantity demanded of a product changes significantly due to a change in its price.