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

question 31

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

---

Definitions:

Factory Payroll

The total amount of salaries and wages paid to employees working in a factory, directly related to manufacturing operations.

Direct Labor

Costs associated with the employees who are directly involved in the production of goods or services.

Indirect Labor

Labor costs associated with support work that does not directly contribute to the production of goods or provision of services but is necessary for operations.