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

question 40

True/False

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,you can conclude that the second-order autoregressive model is appropriate at the 5% level of significance.

---

Definitions:

Cost Information

Data related to the expenses incurred in the production, operation, or acquisition of goods and services, used for financial analysis and decision-making.

Direct Materials

Materials that can be directly traced to the production of specific goods or services.

Cost of Goods Sold

The direct costs attributable to the production of the goods sold by a company.

Manufacturing

The process of converting raw materials into finished products through various methods such as assembly, machining, or chemical processing.