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

question 156

Short Answer

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 first month is 0:




-Referring to Table 16-13, what is the exponentially smoothed forecast for the 13ᵗʰ month using a smoothing coefficient of W = 0.25 if the exponentially smooth value for the 10ᵗʰ and 11ᵗʰ month are 9,477.7776 and 9,411.8332, respectively?

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Definitions:

Occipital Bone

A cranial bone located at the lower back of the skull, playing a key role in protecting the brain and supporting the head.

Frontal Bone

The bone that forms the front part of the skull and the upper part of the eye sockets.

Ethmoid Bone

A complex structure located at the base of the skull, between the eyes and nasal cavities, contributing to the orbits and nasal septum.

Ewing Sarcoma

An uncommon form of cancer found in bones or the surrounding soft tissues, mainly impacting kids and young individuals.