Select all the correct locations on the table. A group of doctors conducted an experiment to determine which drug is more effective in the treatment of hypertension. Two drugs were tested across three hospitals on 50 patients each. The following table shows the number of patients that reported improvement in hypertension symptoms in each hospital.

Hospital Drug X Drug Y
A 29 30
B 35 21
C 26 18
Select all true statements that can be concluded from the experiment.