What is an A-weighted decibel (dBA or dB(A))?
1:41
What is an A-weighted decibel (dBA or dB(A))?
Mar 29, 2020
techtarget.com
The mean noise level of 20 areas designated as "casualty doors"in a hospital was 63.1 dBA with a standard deviation of 4.1 dBA.The mean noise level for 24 areas designated as "operatingtheaters" was 56.3 dBA with a standard deviation of 7.5 dBA. At α =0.05, can it be concluded that there is a difference in the means?Use a t-test to make your decision. Answer true is we shouldconclude that there is a difference and false if we cannot concludethat there is a difference. True or False?
The mean noise level of 20 areas designated as "casualty doors"in …
Sep 26, 2021
numerade.com
SOLVED:Noise Levels in Hospitals The mean noise level of 20 randomly selected areas designated as "casualty doors", was 63.1 dBA, and the sample standard deviation is 4.1 dBA. The mean noise level for 24 randomly selected areas designated as operating theaters was 56.3 dBA, and the sample standard deviation was 7.5 dBA. At α=0.05, can it be concluded that there is a difference in the means?
SOLVED:Noise Levels in Hospitals The mean noise level of 20 rando…
Jul 8, 2020
numerade.com
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