A veterinarian studying causes of enteroliths in horses suspects feeding too much alfalfa may be a culprit. The veterinarian hypothesizes that more than two thirds of all horses with enteroliths are fed mostly alfa.

The proper hypothesis statement is:

A)H0: p = 0.67, Ha: p < 0.67

B)H0: p^ = 0.67, Ha: p^> 0.67

c)H0: p = 0.67, Ha: p> 0.67

d)H0: p^ = 0.67, Ha: p ^< 0.67