According to a study conducted by an organization, the proportion of Americans who were afraid to fly in 2006 was 0.10. A random sample of 1,300 Americans results in 117 indicating that they are afraid to fly. Explain why this is not necessarily evidence that the proportion of Americans who are afraid to fly has decreased.
A. This is not necessarily evidence that the proportion of Americans who are afraid to fly has decreased below 0.10 because the sample proportion, $\boxed{0.09}$, is very close to 0.10.
B. This is not necessarily evidence that the proportion of Americans who are afraid to fly has decreased below 0.10 because the probability of obtaining a value equal to or more extreme than the sample proportion is $\boxed{0.2266}$, which is not unusual.
C. This is not necessarily evidence that the proportion of Americans who are afraid to fly has decreased below 0.10 because the sample size n is more than 5% of the population.
D. This is not necessarily evidence that the proportion of Americans who are afraid to fly has decreased below 0.10 because the value of $np(1-p)$ is less than 10.