1. **State the problem:** We want to test if there is a significant difference in course enrollment between male and female students using the Chi-Square test at a 10% significance level.
2. **Set up hypotheses:**
- Null hypothesis $H_0$: Gender and course enrollment are independent (no relationship).
- Alternative hypothesis $H_a$: Gender and course enrollment are dependent (there is a relationship).
3. **Observed frequencies (O):**
\begin{array}{c|ccc|c}
\text{Gender} & \text{M\&E} & \text{Procurement} & \text{HRM} & \text{Total} \\
\hline
\text{Male} & 15 & 23 & 10 & 48 \\
\text{Female} & 25 & 19 & 8 & 52 \\
\hline
\text{Total} & 40 & 42 & 18 & 100
\end{array}
4. **Calculate expected frequencies (E) using:**
$$E = \frac{(\text{row total}) \times (\text{column total})}{\text{grand total}}$$
For Male, M&E:
$$E = \frac{48 \times 40}{100} = 19.2$$
For Male, Procurement:
$$E = \frac{48 \times 42}{100} = 20.16$$
For Male, HRM:
$$E = \frac{48 \times 18}{100} = 8.64$$
For Female, M&E:
$$E = \frac{52 \times 40}{100} = 20.8$$
For Female, Procurement:
$$E = \frac{52 \times 42}{100} = 21.84$$
For Female, HRM:
$$E = \frac{52 \times 18}{100} = 9.36$$
5. **Calculate Chi-Square statistic:**
$$\chi^2 = \sum \frac{(O - E)^2}{E}$$
Calculate each term:
- Male, M&E: $\frac{(15 - 19.2)^2}{19.2} = \frac{(-4.2)^2}{19.2} = \frac{17.64}{19.2} = 0.919$
- Male, Procurement: $\frac{(23 - 20.16)^2}{20.16} = \frac{2.84^2}{20.16} = \frac{8.066}{20.16} = 0.400$
- Male, HRM: $\frac{(10 - 8.64)^2}{8.64} = \frac{1.36^2}{8.64} = \frac{1.850}{8.64} = 0.214$
- Female, M&E: $\frac{(25 - 20.8)^2}{20.8} = \frac{4.2^2}{20.8} = \frac{17.64}{20.8} = 0.848$
- Female, Procurement: $\frac{(19 - 21.84)^2}{21.84} = \frac{(-2.84)^2}{21.84} = \frac{8.066}{21.84} = 0.369$
- Female, HRM: $\frac{(8 - 9.36)^2}{9.36} = \frac{(-1.36)^2}{9.36} = \frac{1.850}{9.36} = 0.198$
Sum all terms:
$$\chi^2 = 0.919 + 0.400 + 0.214 + 0.848 + 0.369 + 0.198 = 2.948$$
6. **Degrees of freedom (df):**
$$df = (\text{number of rows} - 1) \times (\text{number of columns} - 1) = (2 - 1) \times (3 - 1) = 1 \times 2 = 2$$
7. **Critical value:**
At significance level $\alpha = 0.10$ and $df=2$, the critical value from Chi-Square table is approximately $4.605$.
8. **Decision:**
Since $\chi^2 = 2.948 < 4.605$, we fail to reject the null hypothesis.
**Conclusion:** There is no significant difference in course enrollment between male and female students at the 10% significance level.
Chi Square Enrollment D2F42D
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