Statistics question?

Question

Assume that the proportion of people who live after suffering

an aneurysm is 0.93. Suppose there's a new medicine that's used to increase the survival rate. Use the parameter p to represent the population proportion of people who survive after an aneurysm. For a hypothesis test of the medicine's effectiveness, researchers use a null hypothesis of p=0.93. What's the correct alternative hypothesis?

p < 0.93

p (is not equal to) 0.93

p > 0.93

Answer 1

The alternative hypothesis is "the medicine increases the survival rate", so it should be p>.93.