Homework SourseA researcher wants to test the effectiveness of drug to trea
A researcher wants to test the effectiveness of drug to treat diarrhea in those who travel abroad. She tested a group of travelers,
Solution
The test hypothesis:
Null hypothesis: there is no significant difference between the groups
Alternative hypothesis: there is a significant difference between the groups
| Contracted disorder | Did not contract | Total | ||
| Drug | Observed | 1 | 17 | 18 |
| Expected | 4.62 | 13.38 | 18.00 | |
| (O - E) |
