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Levels Tought:
Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 3 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Noise Levels in HospitalsIn the hospital study cited in Exercise 19 in Exercise set 7–1, it was found that the standard deviation of the sound levels from 20 areas designated as “casualty doors” was 4.1 dBA and the standard deviation of 24 areas designated as operating theaters was 7.5 dBA. At a= 0.05, can you substantiate the claim that there is a difference in the standard deviations
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