Data on Demand Over the Last Few Years Are Available

question 143

Short Answer

Data on demand over the last few years are available as follows: $$\begin{array} { l l } \text { Time Period } & \text { Demand } \\\hline 7 \text { years ago } & 7 \\6 \text { years ago } & 28 \\\text { 5 years ago } & 21 \\\text { 4 years ago } & 42 \\\text { 3 years ago } & 35 \\\text { 2 years ago } & 56 \\\text { Last year } & 49\end{array}$$ What is this year's forecast using trend-adjusted (double) smoothing with alpha = .2 and beta = .1, if the forecast for last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast was 7?

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Definitions:

Divergent Evolution

The process by which two or more related but reproductively isolated populations become more dissimilar in response to differing environmental pressures.

Species

A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

Assassin Bug

A type of insect known for its predatory behavior, using a piercing mouthpart to inject lethal saliva into its prey.

Sleeping Clusters

A behavior observed in some animal species where individuals group together while resting or sleeping to enhance protection and warmth.