A union restaurant and food-services worker would like to estimate the mean hourly wage.

MATLAB: An Introduction with Applications
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A union restaurant and food-services worker would like to estimate the mean hourly wage.
A union of restaurant and foodservice workers would like
estimate the mean hourly wage, u, 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 union to be 99%
confident 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 $2.20.
Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole
number that satisfies the requirements).
(If necessary, consult a list of formulas.)
Continue
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Transcribed Image Text:A union of restaurant and foodservice workers would like estimate the mean hourly wage, u, 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 union to be 99% confident 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 $2.20. Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.) Continue Submit Assign © 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy Acce
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