In 2012, a teacher conducted a survey with 50 randomly selected college professors to know their average annual income. From the same study, it was found that the population standard deviation of their income is at 60,000 pesos. Ten years after, they would like to replicate the survey among all active college professors and estimate the present average annual income at 99% confidence. If their region would like to estimate the actual average income of college professors within a 10,000-peso margin of error, how large a sample size should they consider?
In 2012, a teacher conducted a survey with 50 randomly selected college professors to know their average annual income. From the same study, it was found that the population standard deviation of their income is at 60,000 pesos. Ten years after, they would like to replicate the survey among all active college professors and estimate the present average annual income at 99% confidence. If their region would like to estimate the actual average income of college professors within a 10,000-peso margin of error, how large a sample size should they consider?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In 2012, a teacher conducted a survey with 50 randomly selected college professors to know their average annual income. From the same study, it was found that the population standard deviation of their income is at 60,000 pesos. Ten years after, they would like to replicate the survey among all active college professors and estimate the present average annual income at 99% confidence. If their region would like to estimate the actual average income of college professors within a 10,000-peso margin of error, how large a
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