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

question 28

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 exponentially smoothed value for the second month using a smoothing coefficient of W = 0.5?

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Definitions:

Security

Collateral or asset pledged to guarantee the repayment of a loan or fulfillment of a contractual obligation.

Consideration

An element of a valid contract; the price one is willing to pay for the promise set out in the offer.

Guarantee

A formal assurance or promise, often related to the quality or durability of a product, or the fulfillment of a contract.

Guaranteed

Promised with certainty or underwritten with a promise of payment or performance.