Question
A certain flight arrives on time 82 percent of the time. Suppose 134 flights are randomly...
A certain flight arrives on time 82 percent of the time. Suppose 134 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that
(a) exactly 109 flights are on time.
(b) at least 109 flights are on time.
(c) fewer than 104 flights are on time.
(d) between 104 and 118, inclusive are on time.
Homework Answers
Answer #1
P value can be found from Excel,
=Norm.s.dist(z, cumulative)
=Norm.s.dist(-1.93,1)
= 0.9732
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