The Following Information Regarding the Number of Semester Hours Taken $\begin{array}{cc}&\text { Day }&\text { Evening }\\&16 & 12 \\s&4 & 2 \\n&140 & 160\end{array}$

question 20

Short Answer

The following information regarding the number of semester hours taken from random samples of day and evening students is provided.
$\begin{array}{cc}&\text { Day }&\text { Evening }\\&16 & 12 \\s&4 & 2 \\n&140 & 160\end{array}$ Develop a 95% confidence interval estimate for the difference between the mean semester hours taken by the two groups of students.

---

Definitions:

Risk-Averse Investors

Individuals who prefer to minimize their exposure to risk and are often willing to accept lower returns in exchange for greater certainty.

Risk-Neutral Investors

Investors who are indifferent to the risk of their investments, focusing solely on the expected returns without considering the variability of those returns.

Risk-Loving Investors

Individuals who prefer investments with a high level of risk in the hope of realizing higher returns compared to safer investments.

Rate of Return

The percentage of net gain or loss on an investment over a specified period, showing the efficiency of an investment.