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In a study conducted by an industrial hygiene organization of 44 workers exposed to loud noise, the average sound level required to detect a 10
In a study conducted by an industrial hygiene organization of 44 workers exposed to loud noise, the average sound level required to detect a 10 kHz signal was 32 db with a standard deviation s = 22. Determine the upper limit for a 90% confidence interval for the mean sound level required for all individuals who are exposed to this type of noise. 38,50 40.54 36,25 36,77 37.46
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