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 1,100 Americans results in 121 indicating that they are...




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
1,100

Americans results in
121

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
increased.



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Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.







A.


This is not necessarily evidence that the proportion of Americans who are afraid to fly has
increased

above

0.10 because the sample size n is more than​ 5% of the population.






B.


This is not necessarily evidence that the proportion of Americans who are afraid to fly has
increased

above

0.10 because the probability of obtaining a value equal to or more extreme than the sample proportion is
nothing​,

which is not unusual.

​(Round to four decimal places as​ needed.)






C.


This is not necessarily evidence that the proportion of Americans who are afraid to fly has
increased

above

0.10 because the value of
​np(1−​p)

is less than 10.






D.


This is not necessarily evidence that the proportion of Americans who are afraid to fly has
increased

above

0.10 because the sample​ proportion,

is very close to 0.10.

​(Type an integer or a​ decimal.)








Jun 06, 2022
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