The Following Data Show the Results of an Aptitude Test $\alpha$

question 95

Essay

The following data show the results of an aptitude test (Y) and the grade point average of 10 students.

a.Develop a least squares estimated regression line.
b.Compute the coefficient of determination and comment on the strength of the regression relationship.
c.Is the slope significant? Use a t test and let $\alpha$ = 0.05.
d.At 95% confidence, test to determine if the model is significant (i.e., perform an F test).

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Definitions:

Theory Of Constraints

A manufacturing strategy that focuses on reducing the influence of bottlenecks (constraints) on production processes.

Product Cost Method

A costing technique used to determine the expense associated with producing a product, including direct labor, materials, and overhead.

Selling Expenses

Costs incurred directly and indirectly in making sales, including salaries, commission, advertising, and promotional materials.

Administrative Expenses

Operating expenses not directly tied to the production of goods or services, such as salaries of administrative staff, office supplies, and utilities.