7. A new medical drug used as an aid for those who want to stop smoking is tested. The adverse
reaction of nausea has been studied in clinical trials, and the table summarizes results. Find the
test statistic needed to test the claim that nausea is independent of whether the subject took a
placebo or the new drug.
Nausea
No nausea
06.635
O116.395
097.254
Placebo
10
795
New Medical Drug
145
122
(1 p