The Dean of the Business School at a Small Florida $E ( y ) = \beta _ { 0 } + \beta 1 x$

question 101

Multiple Choice

The dean of the Business School at a small Florida college wishes to determine whether the grade-point average (GPA) of a graduating student can be used to predict the graduate's starting salary. More specifically, the dean wants to know whether higher GPAs lead to higher starting salaries. Records for 23 of last year's Business School graduates are selected at random, and data on GPA (x) and starting salary (y, in $thousands) for each graduate were used to fit the model $E ( y ) = \beta _ { 0 } + \beta 1 x$ The results of the simple linear regression are provided below. $$\begin{aligned}\hat { y } = 4.25 + 2.75 x , & S S _ { x y } = 5.15 , S S _ { X x } = 1.87 \\S S _ { y y } & = 15.17 , S S E = 1.0075\end{aligned}$$ Compute an estimate of ?, the standard deviation of the random error term.

• A) .048
• B) 0.219
• C) .689
• D) 1.0075

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Definitions:

U.S. Labor Law

The collection of statutes, regulatory decisions, and historical precedents that constitute the legal privileges and limitations for employees and their unions in the United States.

Legislative Pressure

Influence exerted by laws or legislative bodies that impacts the behavior of individuals, organizations, or governments.

Law Changes

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Wright Line Test

A legal standard used in labor law to determine if an employee's activity was a motivating factor in an employer's decision to take action against the employee.