Answer:
H0: p=0.85;
Ha: p>0.85
Explanation:
What was being tested is that:
the coach wanted to know if the proportion of basketball players who are over 72 inches is more than 85%.
The null hypothesis which we are testing against would be that the proportion of basketball players who are over 72 inches is 85%.
H0: p=0.85;
Ha: p>0.85