The Travel Weekly International Air Transport Association survey asked business travellers about the purpose for their most recent business trip. Seventeen percent responded that it was for an internal company visit. Suppose 900 business travellers are randomly selected.
a.What is the probability that between 16% and 18% of the business travellers said that the reason for their most recent business trip was an internal company visit?
b.What is the probability that between 120 and 160 of the business travellers said that the reason for their most recent business trip was an internal company visit?
From the given information
Therefore
a.
the probability that between 16% and 18% of the business travellers said that the reason for their most recent business trip was an internal company visit 0.5756
b.
the probability that between 120 and 160 of the business travellers said that the reason for their most recent business trip was an internal company visit is 0.99,
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