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

question 78

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 = 0.25?

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Definitions:

Firm's Letterhead

The official stationary of a company or organization that contains its name, address, logo, and sometimes its directors, used for formal correspondence.

Phone Number

A sequence of digits assigned to a telephone line for the purposes of making and receiving calls.

Letterhead

A printed heading on stationery, typically including a name and an address, used by a person or organization for professional correspondence.

Geographic Locations

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