The proportion of people who live after suffering a stroke is 0.85. Suppose there is a new treatment that is used to increase the survival rate. Use the parameter p to represent the population proportion of people who survive after a stroke. For a hypothesis test of the treatment’s effectiveness, researchers use a null hypothesis of p = 0.85. Pick the correct alternative hypothesis. 

i. p ≠ 0.85 

ii. p > 0.85 

iii. p < 0.85