Hospital Noise Levels For a sample of 9 operating rooms taken in a hospital study, the mean noise level was 42.6 decibels and the standard deviation was 10.7. Find the 90% confidence interval of the true mean of the noise levels in the operating rooms. Assume the variable is normally distributed. Round your answers to at least two decimal places. <μ< X
Hospital Noise Levels For a sample of 9 operating rooms taken in a hospital study, the mean noise level was 42.6 decibels and the standard deviation was 10.7. Find the 90% confidence interval of the true mean of the noise levels in the operating rooms. Assume the variable is normally distributed. Round your answers to at least two decimal places. <μ< X
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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![**Hospital Noise Levels:** For a sample of 9 operating rooms taken in a hospital study, the mean noise level was 42.6 decibels and the standard deviation was 10.7. Find the 90% confidence interval of the true mean of the noise levels in the operating rooms. Assume the variable is normally distributed. Round your answers to at least two decimal places.
\[ \text{[ ]} < \mu < \text{[ ]} \]
**Diagram Explanation:** There is a graphical input box with two empty fields for the lower and upper bounds of the confidence interval. There are also two buttons: one with an 'X' for deleting or clearing values, and another with a circular arrow for resetting or refreshing the input fields.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5aeff752-7ccf-4e62-bc6c-99de9bf43c1c%2F4026d20e-80bd-4a00-900f-7fb6c32379bf%2Fplztt7_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Hospital Noise Levels:** For a sample of 9 operating rooms taken in a hospital study, the mean noise level was 42.6 decibels and the standard deviation was 10.7. Find the 90% confidence interval of the true mean of the noise levels in the operating rooms. Assume the variable is normally distributed. Round your answers to at least two decimal places.
\[ \text{[ ]} < \mu < \text{[ ]} \]
**Diagram Explanation:** There is a graphical input box with two empty fields for the lower and upper bounds of the confidence interval. There are also two buttons: one with an 'X' for deleting or clearing values, and another with a circular arrow for resetting or refreshing the input fields.
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