Mathematics, 16.04.2020 22:50, josephdakota
Noise levels at various area urban hospitals were measured in decibels. The mean of the noise levels in 24 randomly selected corridors was 61.8 decibels. The sample standard deviation is 6.9. Find the 90% confidence interval of the true mean. Assume the distribution of noise level is normal.
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Noise levels at various area urban hospitals were measured in decibels. The mean of the noise levels...
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