# Although airline schedules and cost are important factors for business travelers when choosing an airline carrier, a uSa today survey found that business travelers list an airline’sfrequent flyer program as the most important factor. From a sample of n = 1993 businesstravelers who responded to the survey, 618 listed a frequent flyer program as the most important factor.a. What is the point estimate of the proportion of the population of business travelerswho believe a frequent flyer program is the most important factor when choosing anairline carrier?b. Develop a 95% confidence interval estimate of the population proportion.c. How large a sample would be required to report the margin of error of .01 at 95%confidence? Would you recommend that uSa today attempt to provide this degreeof precision? Why or why not?

Question

Although airline schedules and cost are important factors for business travelers when choosing an airline carrier, a uSa today survey found that business travelers list an airline’s
frequent flyer program as the most important factor. From a sample of n = 1993 business
travelers who responded to the survey, 618 listed a frequent flyer program as the most important factor.
a. What is the point estimate of the proportion of the population of business travelers
who believe a frequent flyer program is the most important factor when choosing an
airline carrier?
b. Develop a 95% confidence interval estimate of the population proportion.
c. How large a sample would be required to report the margin of error of .01 at 95%
confidence? Would you recommend that uSa today attempt to provide this degree
of precision? Why or why not?

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