A San Jose State Student Collects Data from 20 Students $\text { R-sq }=0.26753742$

question 9

Essay

A San Jose State student collects data from 20 students. He compares the number of classes a student is enrolled in to their GPA. Here are the results of the regression analysis. The conditions for inference are satisfied.

Simple linear regression results:
Dependent Variable: GPA
Sample size: 20
$\text { R-sq }=0.26753742$
$\text { s: } 0.45747$



Simple linear regression results: Dependent Variable: GPA Sample size: 20
R-sq = 0.26753742 s: 0.45747 $\begin{array}{|l|r|r|r|r|}\hline{\text { Coefficient }} & \text { Estimate } &{\text { Std. Err. }} & {\text { T-Stat }} & \text { P-Value } \\\hline \text { Constant } & 3.4246 & 0.16580 & 20.654 & <0.0001 \\\hline \text { No. of Classes } & -0.13940 & 0.054369 & -2.5641 & 0.0195\\\hline\end{array}$

-Is there evidence of a significant relationship between number of classes and GPA? Provide statistical justification for your answer.

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Definitions:

Credibility

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Power-oriented Linguistic Style

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Communication that conveys a message in a roundabout manner rather than directly, often used to soften the delivery of sensitive information.

Uncertainty

The state of having limited knowledge where it is impossible to exactly describe existing states, outcomes, or predictions.