A large fishing farm with thousands of fish has been treating
its fish to stop a spreading fungal infection. A random sample of
50 fish is taken to determine the proportion p that is infected in
this population. A careful examination determines that 6 of the
fish sampled are infected. The infection would be contained if
fewer than 10% of the fish were infected. To answer this question
we would test the following null and alternative hypotheses:
a. H0 : p = 0.50, Ha : p < 0.50
b. H0 : p = 0.12, Ha : p < 0.12
c. H0 : p = 0.12, Ha : p < 0.10
d. H0 : p = 0.10, Ha : p < 0.10