Consider the Partially Completed ANOVA Table Showing the Results of a Regression

question 4

Multiple Choice

Consider the partially completed ANOVA table showing the results of a regression analysis shown.
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$\begin{array}{|lcrcl|}\hline \text { Source of } & {\text { Sum of }} & {\text { Mean }} & \\\text { variation } & \text { squares } & \text { df } & \text { squares } & \text { F-ratio } \\\text { Regression } & 305.1 & 1 & ? & ? \\\text { Residual } & 1247.3 & 24 & ? & \\\text { Total } & 1552.4 & 25 & & \\\hline\end{array}$
-If the slope is -1.64, the residual mean square is 3.6, the sum of squares for X is 2.5, and the sample size is 16, what is the t-value we obtain when doing a t-test using a hypothesized slope of zero?

• A) -0.867
• B) -1.367
• C) -1.867
• D) -2.367

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Definitions:

Medulla

The base of the brainstem, controlling vital bodily functions such as breathing, heart rate, and blood pressure.

Coma

A state of unconsciousness in which a person cannot be awakened; fails to respond normally to painful stimuli, light, or sound; lacks a normal wake-sleep cycle; and does not initiate voluntary actions.

Life Support

Medical equipment that sustains, extends, or replaces vital bodily functions, often used in critically ill or comatose patients.

Occipital Lobe

The region of the brain located at the back of the head, responsible for processing visual information.