The Number of New Central Air Conditioning Systems Installed by CoolBreeze

question 31

Essay

The number of new central air conditioning systems installed by CoolBreeze, Inc. in each of the last nine years is listed below.
​ $$\begin{array} { c c | c c | c c } \hline \text { Year } & \text { Jobs } & \text { Year } & \text { Job } & \text { Year } & \text { Jobs } \\\hline 1 & 353 & 4 & 374 & 7 & 399 \\2 & 387 & 5 & 396 & 8 & 412 \\3 & 342 & 6 & 409 & 9 & 408 \\\hline\end{array}$$ ​
Assuming a linear trend function, forecast the number of system installations CoolBreeze will perform in 10using linear trend regression.

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Definitions:

Habitat Reduction

The decrease in the size of natural environments that support wildlife, often due to human activities like deforestation, urbanization, and agriculture expansion.

Species Threat

A situation or condition that endangers the survival or well-being of a particular species, often due to human activities or environmental changes.

Water Pollution

The contamination of water bodies, such as lakes, rivers, oceans, and groundwater, caused by harmful substances directly or indirectly discharged into them, leading to adverse effects on aquatic life and human health.

Habitat Island

A patch of land, typically surrounded by a contrasting landscape, that serves as a refuge for species and maintains biodiversity.