A simple random sample of 120 vet clinics in Midwest reveals which the vast majority of them only treat small pets (dogs, cats, rabbits, etc.) and no large animals (cows, horses, etc.). Of 120 clinics sampled, 88 responded that they don't treat large animals at their clinic.
Determine a 90% confidence interval for p, the population proportion of vet clinics that do treat large animals?
A) (0.163, 0.371)
B) (0.188, 0.346)
C) (0.200, 0.333)
D) (0.667, 0.800)