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

question 27

Short Answer

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

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Definitions:

Segmentation Genes

In Drosophila, genes transcribed in the embryo that are responsible for generating a repeating pattern of body segments within the embryo and adult fly.

Genetic Switches

Genetic switches are molecular mechanisms that can activate or deactivate genes, thereby controlling patterns of gene expression.

Tissue-Specific Gene

A gene that is expressed in particular tissues of an organism rather than in all tissues, often contributing to the specialized functions of that tissue.

Conserved

Conserved in a biological context refers to genes, sequences, or structures that have remained unchanged throughout evolution across different species.