(Solved): Hospital Noise Levels For a sample of 10 operating rooms taken in a hospital study, the mean noise ...

Hospital Noise Levels For a sample of 10 operating rooms taken in a hospital study, the mean noise level was 43 decibels and the standard deviation was \( 10.4 \). 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.