MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Average length of stay of a sample of 20 patients discharged from a general hospital was 7 days with a standard deviation of 2 days. A sample of 24 patients discharged from a chronic disease hospital has an average of 36 days and a standard deviation of 10 days. Assuming unequal variances and normal populations, find a 95% confidence interval for difference in population mean length of stay between hospital types using the unpooled procedure
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