Suppose a company from the United States does considerable business in the city of Johannesburg, South Africa and wishes to establish a per diem rate for employee travel to that city. The company researcher is assigned this task, and in an effort to determine this figure, she obtains a random sample of 14 business travelers staying in Johannesburg. The result is the data presented below. Use these data to construct a 98% confidence interval to estimate the average per diem expense for business people traveling to Johannesburg. What is the point estimate? Assume per diem rates for any locale are approximately normallydistributed.
Answer to relevant QuestionsHow much experience do supply-chain transportation managers have in their field? Suppose in an effort to estimate this, 41 supply-chain transportation managers are surveyed and asked how many years of managerial experience ...The Universal Music Group is the music industry leader worldwide in sales according to Nielsen Sound Scan. Suppose a researcher wants to determine what market share the company holds in the city of St. Louis by randomly ...For each of the following sample results, construct the requested confidence interval. Assume the data come from normally distributed populations.a. n = 12, x̄ = 28.4, s2 = 44.9;99% confidence for σ2b. n = 7, x̄ = 28.4, s ...Suppose a production facility purchases a particular component part in large lots from a supplier. The production manager wants to estimate the proportion of defective parts received from this supplier. She believes the ...Use the data in Problem 8.53 to construct a 99% confidence interval to estimate the population variance for the number of diapers used during a 24-hour period for one-month-olds. How could information about the population ...
Post your question