A survey shows that 15% of nurses are being underpaid in a hospital that employs 200 nurses.
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Question:
A survey shows that 15% of nurses are being underpaid in a hospital that employs 200 nurses.
(i) Construct a 90% confidence interval to represent the proportion of underpaid nurses in the hospital. Give an interpretation of this interval.
(ii) Suppose that in another hospital, 12% of the 120 nurses employed are underpaid. Construct a 90% confidence interval for the difference in proportions of nurses being underpaid at both hospitals.
Related Book For
Business Statistics
ISBN: 978-0321925831
3rd edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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