The following table shows the results of recent study regarding gender of individuals and their selected field of study.
Field of study | Male | Female | TOTAL |
Medicine | 80 | 40 | 120 |
Business | 60 | 20 | 80 |
Engineering | 160 | 40 | 200 |
TOTAL | 300 | 100 | 400 |
We want to determine if the selected field of study is independent of gender.
a. | Compute the test statistic. |
b. | Using the p-value approach at 90% confidence, test to see if the field of study is independent of gender. |
c. | Using the critical method approach at 90% confidence, test for the independence of major and gender. |