TABLE 16-13 Given Below Is the Monthly Time-Series Data for U.S. Retail

question 104

Short Answer

TABLE 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 first month is 0:




-Referring to Table 16-13, what is the p-value for the t test statistic for testing the significance of the quadratic term in the quadratic-trend model?

---

Definitions:

Perpetual Inventory System

An accounting method that records the sale or purchase of inventory immediately through the use of technology, ensuring continuous updating of inventory and cost of goods sold data.

Freight Costs

Expenses incurred by a company to ship its products to customers, usually varying based on distance and weight.

Inventory Account

An accounting record that tracks the cost of goods available for sale or used in production.

Perpetual Inventory System

An accounting method that records the sale or purchase of inventory immediately through the use of computerized point-of-sale systems and enterprise asset management software.