Using information from #10 on pages 432-433 (and Appendix 9), what proportion of anxiety among coffee drinkers is actually attributed to (caused by) coffee consumption?
able 9A–1 Cohort Study Data for Coffee Use and Anxiety
|
Anxiety |
|||
|---|---|---|---|
|
Coffee Use |
Yes |
No |
Total |
|
Yes |
500 |
9,500 |
10,000 |
|
No |
200 |
19,800 |
20,000 |
The above tabular column shows that presence of Anxiety among 500 people who drink coffee are reported among the total population of 10,000.
And 200 cases of anxiety reported among total population of 20,000 who do not drink coffee.
Using information from #10 on pages 432-433 (and Appendix 9), what proportion of anxiety among coffee...