Identify the Components of Simple Linear Regression Models and Discuss

question 22

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) . $$\begin{array} { | l | l | } \hline\begin{array} { l } \text { Height } \\\text { (ft) }\end{array} & \text { Cost (\$) } \\\hline 4 & 670 \\\hline 3 & 430 \\\hline 7 & 810 \\\hline 9 & 1100 \\\hline 6 & 790 \\\hline 8 & 880 \\\hline 5 & 760 \\\hline 11 & 1200 \\\hline\end{array}$$
-Which of the following generates a scatter chart in Excel with the values predicted by the regression model included?

• A) Trendline
• B) Residual Plots
• C) R Square
• D) Line Fit Plots

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Definitions:

CFTR Gene

A gene that codes for a protein involved in the transport of chloride ions across cell membranes, mutations of which are known to cause cystic fibrosis.

Mutated

Refers to having undergone changes in the genetic material, leading to a variation from the original.

Homozygous Dominant

An organism possessing two dominant alleles for a particular gene, resulting in the expression of the dominant trait.