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EastWind [94]
4 years ago
8

An airline is interested in determining the proportion of its customers who are flying for reasons of business. If they want to

be 90% certain that their estimate will be correct to within 2 percent, how large a random sample should they select?
Business
1 answer:
Oksana_A [137]4 years ago
3 0

Answer:

a random sample they should select should be 1692 large.

Explanation:

Given:

a = 0.1

Z(0.05) = 1.645 (from standard normal table)

n = (Z/E)^2*p*(1 - p)

  = (1.645/0.02)^2*0.5*0.5

    = 1691.266

Therefore, a random sample they should select should be 1692 large.

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