A San Jose State Student Collects Data from 20 Students

question 10

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
R-sq = 0.26753742 s: 0.45747


$\begin{array}{|l|r|r|r|r|}\hline\text{ Coefficient } &\text{ Estimate } &\text{ Std. Err. } &\text { T-Stat } &\text { P-Value } \\\hline \text { Constant }& 3.4246 & 0.16580 & 20.654 & <0.0001 \\\hline \text { No. of Classes} & -0.13940 & 0.054369 & -2.5641 & 0.0195 \\\hline\end{array}$

-Find and interpret a 95% confidence interval for the slope of the regression equation.

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Definitions:

Supply Curve

A graph that represents the relationship between the price of a good and the quantity of the good that suppliers are willing to offer for sale.

Socially Optimal

A condition that maximizes societal welfare, often referring to the optimal distribution of resources and goods.

Government Intervention

Government intervention involves actions taken by a government to affect the economy, which can include regulations, subsidies, and taxes, aiming to correct market failures or achieve social goals.

Optimal Supply

Refers to the ideal level of stock or inventory that a company should maintain to meet demand without incurring excess costs or shortages.