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A union of restaurant and foodservice workers would like to estimate the mean hourty wage, , of foodservice workers in the U.S. The union will choose a random sample of wages and then estimate u using the mean of the sample. What is the minimum sample size needed in order for the unlon to be 99% confdent that its estimate is within $0.40 of u? Suppose that the standard deviation of wages of foodservice workers in the U.S. Is about $2.10. Carry your intermediate computations to at least three decimal places. Write your answer as a whole nuhber (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list.of formulas.)

A union of restaurant and foodservice workers would like to estimate the mean hourty wage, , of foodservice workers in the U.S. The union will choose a random sample of wages and then estimate u using the mean of the sample. What is the minimum sample size needed in order for the unlon to be 99% confdent that its estimate is within $0.40 of u? Suppose that the standard deviation of wages of foodservice workers in the U.S. Is about $2.10. Carry your intermediate computations to at least three decimal places. Write your answer as a whole nuhber (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list.of formulas.)

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Probability
A union of restaurant and foodservice workers would like to estimate the mean hourly wage, , of foodservice workers in the U.S. The union will choose a random sample of wages and then estimate j using the mean of the sample. What is the minimum sample size needed in order for the unlon to be 99% confdent that its estimate is within $0.40 of u? Suppose that the standard deviation of wages of foodservice workers in the U.S. Is about $2.10. Carry your intermediate computations to at least three decimal places. Write your answer as a whole nuhber (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list.of formulas.)
Transcribed Image Text:A union of restaurant and foodservice workers would like to estimate the mean hourly wage, , of foodservice workers in the U.S. The union will choose a random sample of wages and then estimate j using the mean of the sample. What is the minimum sample size needed in order for the unlon to be 99% confdent that its estimate is within $0.40 of u? Suppose that the standard deviation of wages of foodservice workers in the U.S. Is about $2.10. Carry your intermediate computations to at least three decimal places. Write your answer as a whole nuhber (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list.of formulas.)
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