Identify the Components of Simple Linear Regression Models and Discuss

question 10

Multiple Choice

Identify the components of simple linear regression models and discuss their applications Use the data given below to answer the following question(s) .
Following is an extract from the database of a construction company. The table shows the height of walls in feet and the cost of raising them. The estimated simple linear regression equation is given as Ŷ = b0 + b1X. (Hint: Use Excel functions) . $$\begin{array} { | l | l | } \hline\begin{array} { l } \text { Height } \\\text { (ft) }\end{array} & \text { Cost (\$) } \\\hline 4 & 670 \\\hline 3 & 430 \\\hline 7 & 810 \\\hline 9 & 1100 \\\hline 6 & 790 \\\hline 8 & 880 \\\hline 5 & 760 \\\hline 11 & 1200 \\\hline\end{array}$$
-What is the value of the coefficient b0?

• A) -2.25321
• B) 0.010697
• C) 254.8371
• D) 86.81704

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Definitions:

Real GDP

Gross Domestic Product adjusted for inflation, providing a more accurate reflection of an economy's size and how it's growing over time.

Price Level

An index or measure that represents the average prices of goods and services in an economy at a given time.

Human Capital

The knowledge and skills that workers acquire through education and on-the-job training

Technology

The application of scientific knowledge for practical purposes, especially in industry and in the creation of goods and services.