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Annie Mikhail, Market Analyst for a National Company Specializing in Historic

question 62

Multiple Choice

Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city.She gathers data from six cities in which the tours are offered.Annie's dependent variable is annual sales revenues and her independent variable is the city population.Regression analysis of the data yielded the following tables. $Annie Mikhail, market analyst for a national company specializing in historic city tours, is analyzing the relationship between the sales revenue from historic city tours and the size of the city.She gathers data from six cities in which the tours are offered.Annie's dependent variable is annual sales revenues and her independent variable is the city population.Regression analysis of the data yielded the following tables. \begin{array}{|c|c|c|c|c|} \hline \text { Souros } & \text { df } & \text { SS } & \text { MS } & F \\ \hline \text { Regren } & 1 & 3.550325 & 3.550325 & 63.20809 \\ \hline \text { Residval } & 4 & 0224675 & 0.056169 & \\ \hline \text { Ilotal } & 5 & 3.775 & & \\ \hline \end{array} \begin{array} { | c | } \hline S _ { \mathrm { e} } = 0.237 \\ \hline r ^ { 2 } = 0.940448 \\ \hline \end{array} Annie's regression model can be written as: __________. A) = 7.950352 - 0.48455x B) = -0.48455 + 7.950352x C) = -0.14156 + 0.105195x D) = 0.105195 - 0.14156x E) = 0.105195 + 0.14156x$ $\begin{array}{|c|c|c|c|c|}\hline \text { Souros } & \text { df } & \text { SS } & \text { MS } & F \\\hline \text { Regren } & 1 & 3.550325 & 3.550325 & 63.20809 \\\hline \text { Residval } & 4 & 0224675 & 0.056169 & \\\hline \text { Ilotal } & 5 & 3.775 & & \\\hline\end{array}$
$\begin{array} { | c | } \hline S _ { \mathrm { e} } = 0.237 \\\hline r ^ { 2 } = 0.940448 \\\hline\end{array}$ Annie's regression model can be written as: __________.

Definitions:

Air-over-hydraulic Brakes

A braking system that uses air pressure to control the hydraulic fluid movement, thereby combining the advantages of both air and hydraulic braking systems.

Hydraulic Booster Assemblies

Components designed to enhance the efficiency of hydraulic systems by increasing the pressure or force applied within the system.

Quick Release Valves

Quick Release Valves are components in air braking systems that allow for rapid exhaust of air from the brake chambers, facilitating faster release of the brakes and reducing brake release time.

Combination Valve

Used in a hydraulic brake system, it contains the safety switch, metering, and proportioning valves in a single valve body and usually is located close to the master cylinder. Also may refer to other multiple function valves such as the service, emergency, relay valve (SERV) used on air brake systems.