Use the Data Given Below to Answer the Following Question(s)

question 49

Multiple Choice

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) .
$$\begin{array} { | r | r | } \hline \begin{array} { l } \text { Height } \\\text { (ft) }\end{array} & \text { Cost (\$) } \\\hline 4 & 670 \\\hline 3 & 430 \\\hline 7 & 810 \\\hline 9 & 1100 \\\hline 6 & 790 \\\hline 8 & 880 \\\hline 5 & 760 \\\hline 11 & 1200 \\\hline\end{array}$$
-The R² value:

• A)is the variability of the observed Y-values from the predicted values.
• B)indicates that as the independent variable increases, the intercept term does too.
• C)gives the proportion of variation in the dependent variable that is explained by the independent variable.
• D)transforms the cumulative probability scale (vertical axis)so that the graph of the cumulative normal distribution is a straight line.

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Definitions:

Poverty Rates

The ratio or percentage of the population living below the poverty line, reflecting the portion of the community considered to be experiencing economic hardship.

Child Care Costs

The expenses associated with providing care for children, particularly in settings outside the home such as daycares or preschools.

Depression

A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment.

Gender Harassment

The act of harassing an individual based on their gender, typically involving unwanted behaviors that manifest a hostile, degrading, or sexualized environment.