The Following Equation Is the Result of Performing a Multiple

question 23

Multiple Choice

The following equation is the result of performing a multiple regression analysis: Job performance = 10 + (5*job knowledge) + (0.7* conscientiousness) ,where job knowledge is measured on a scale of 0-5 and conscientiousness is measured on a scale of 0 to 100.Which of the following conclusions is correct?

• A)Conscientiousness is less important than job knowledge.
• B)If a person scored 5 on job knowledge and 100 on conscientiousness he or she would have the maximum predictive score possible.
• C)Neither job knowledge nor conscientiousness predicts performance.
• D)If a person scored 0 on both job knowledge and conscientiousness,his or her predictive score is 0.

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Definitions:

Determinant

A scalar value that can be computed from the elements of a square matrix and provides information about the matrix, such as whether it is invertible.

Minors

Submatrices formed by deleting one or more rows or columns from a matrix, used in the calculation of determinants and inverses.

Augmented Matrix

A matrix created by adding the columns of two specified matrices together, usually representing a system of linear equations.

Back-substitution

A method used in algebra to solve systems of equations by solving one equation first and then substituting its value into other equations.