Records of the past 15 years have shown the average revenue of company A for the month of March to be 5.05M pesos, with a population standard deviation of 1.64M. Company B has had an average revenue in March of 3.78M during the past 10 years with a population standard deviation of 0.92M. Find a 95% confidence interval for the difference of the true revenues in these two companies, assuming the observations come from normal populations.
Records of the past 15 years have shown the average revenue of company A for the month of March to be 5.05M pesos, with a population standard deviation of 1.64M. Company B has had an average revenue in March of 3.78M during the past 10 years with a population standard deviation of 0.92M. Find a 95% confidence interval for the difference of the true revenues in these two companies, assuming the observations come from normal populations.
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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Records of the past 15 years have shown the average revenue of company A for the month of March to be 5.05M pesos, with a population standard deviation of 1.64M. Company B has had an average revenue in March of 3.78M during the past 10 years with a population standard deviation of 0.92M. Find a 95% confidence interval for the difference of the true revenues in these two companies, assuming the observations come from normal populations.
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