Suppose that 400 students were selected at random from a student body of 10,000 and given shots
to prevent a certain type of flu. All 400 students were exposed to the flu, and 200 of them did not
get the flu. Let's p represent the probability that the shot will be successful for any single student
selected at random from the entire population of 10,000. Let q be the probability that the shot is
not successful. Find a 99% confidence interval for p.
0.4354 to
0.5646
0.4355 to
0.5646
0.4354 to
0.5648
0.4355 to
0.5645