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

question 166

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 value for the first month using a smoothing coefficient of W = 0.25?

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Definitions:

Ducts

Passages or tubes in the body through which substances like air, liquid, or other materials can move from one area to another.

Milk

A nutrient-rich liquid food product produced by the mammary glands of mammals, commonly consumed by humans and used in various dairy products.

Nipples

The small protrusions on the breasts or chest that can produce milk in females and are sensitive to touch in both sexes.

Contractions

are the tightening and relaxing of muscles that can occur in various parts of the body; in the context of childbirth, they refer to the rhythmic tightening of the uterus to help deliver the baby.