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

question 127

True/False

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 1^st month is 0:
Linear trend model: Quadratic trend model: Exponential trend model: First-order autoregressive: Second-order autoregressive: Third-order autoregressive: Below is the residual plot of the various models:
-True or False: Referring to Table 16-13,you can reject the null hypothesis for testing the appropriateness of the third-order autoregressive model at the 5% level of significance.

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Definitions:

Grandma

A familial term used to refer to the mother of one's parent, often associated with elder care, wisdom, and family traditions.

Bakery

A place where bread, pastries, cakes, and other baked goods are made or sold.

Gross Domestic Product

Measures the total value of all goods and services produced within a country’s borders over a specific time period, indicative of its economic health.

Sanitation

Measures aimed at promoting hygiene and preventing disease, especially through the provision of clean water and disposal of sewage and waste.