Find the Least-Squares Regression Line and Use the Line to Make

question 120

Multiple Choice

Find the Least-Squares Regression Line and Use the Line to Make Predictions
-The data below are ages and systolic blood pressures (measured in millimeters of mercury) of 9 randomly selected adults. Find the equation of the regression line for the given data. What would be the predicted pressure if the age was 60 ? Round the predicted pressure to the nearest whole number.
$\begin{array}{|l|c|c|c|c|c|c|c|c|c|}\text { Age, } \mathrm{x} & 38 & 41 & 45 & 48 & 51 & 53 & 57 & 61 & 65 \\\hline \text { Pressure, } \mathrm{y} & 116 & 120 & 123 & 131 & 142 & 145 & 148 & 150 & 152\end{array}$

• A) \(\hat { y } = 1.488 x + 60.46 ; 150 \mathrm {~mm}\)
• B) \(\hat {y} = 60.46 x - 1.488 ; 3626 \mathrm {~mm}\)
• C) \(\hat {y} = 1.448 \mathrm { x } - 60.46 ; 29 \mathrm {~mm}\)
• D) \(\hat {y} = 60.46 x + 1.488 ; 3629 \mathrm {~mm}\)

---

Definitions:

Intended Beneficiary

An intended beneficiary is a person or entity that a contract explicitly states will benefit from its execution or terms.

Incidental Beneficiary

A third party who benefits from a contract between two other parties, although the benefit was not the reason the contract was formed and does not have rights to enforce the contract terms.

Courts

The institutions where legal disputes are heard and decided by a judge or a jury, ranging from local to federal levels.

Statute of Frauds

A law requiring certain types of contracts to be written and signed to be legally enforceable.