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

question 130

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 conclude that the quadratic term in the quadratic-trend model is statistically significant at the 5% level of significance.

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Definitions:

Equity Theory

A concept in social psychology that assesses the fairness of an individual's situation by comparing their input and outcome ratio to those of others.

Input-Outcome Ratio

A concept in equity theory referring to the balance between an individual's contributions to and the rewards they receive from their work or relationship.

Positive Reinforcement Technique

A behavior modification strategy that involves rewarding desirable behaviors to increase the likelihood of their recurrence.

Intrinsic Motivation

The drive to perform an activity for its own sake and personal rewards, rather than for some external reward or pressure.