Mancia et al
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Mancia et al. (2020) conducted a case-control study in the Lombardy
region of Italy to examine the association between the use of angiotensin-converting-enzyme (ACE) inhibitors and the odds of coronavirus disease 2019 (COVID-19). There were 1,502 COVID-19 cases among the 8,071 patients who used ACE inhibitors. There were 4,770 COVID-19 cases among the 28,960 patients who did not use ACE inhibitors. Using a 0.05 significance level, you need to test the claim that the proportion of COVID-19 patients among those who used ACE inhibitors (group 1) is higher than the proportion of COVID-19 patients among those who did not use ACE inhibitors (group 2).
What proportion of ACE inhibitor users were not COVID-19 cases? State Null/Alterative Hypothesis, P Value, Value of test statistic and the conclusion
