According to an expert for the airline industry, 12% of Americans are afraid to fly. Suppose 1100 Americans are sampled. (Give results accurate to at least 4 decimal places.) a. Of the 1100 people sampled, 157 respond that they are afraid to fly. What is the sample statistic p? p= 0.1427 b. Under the assumption that the industry expert's claim that 12% of Americans are afraid to fly is valid, what is the probability that the survey in part (a) would result in a p that is same or lower as the one found? c. Under the assumption that the industry expert's claim that 12% of Americans are afraid to fly is valid, what is the probability that the survey in part (a) would result in a p that is between 11% and 13%?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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According to an expert for the airline industry, 12% of
Americans are afraid to fly.
Suppose 1100 Americans are sampled. (Give results
accurate to at least 4 decimal places.)
a. Of the 1100 people sampled, 157 respond that they
are afraid to fly. What is the sample statistic ô ?
p= 0.1427
b. Under the assumption that the industry expert's claim
that 12% of Americans are afraid to fly is valid, what
is the probability that the survey in part (a) would
result in a p that is same or lower as the one found?
c. Under the assumption that the industry expert's claim
that 12% of Americans are afraid to fly is valid, what
is the probability that the survey in part (a) would
result in a p that is between 11% and 13%?
Transcribed Image Text:According to an expert for the airline industry, 12% of Americans are afraid to fly. Suppose 1100 Americans are sampled. (Give results accurate to at least 4 decimal places.) a. Of the 1100 people sampled, 157 respond that they are afraid to fly. What is the sample statistic ô ? p= 0.1427 b. Under the assumption that the industry expert's claim that 12% of Americans are afraid to fly is valid, what is the probability that the survey in part (a) would result in a p that is same or lower as the one found? c. Under the assumption that the industry expert's claim that 12% of Americans are afraid to fly is valid, what is the probability that the survey in part (a) would result in a p that is between 11% and 13%?
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