For a sample of 7 operating rooms takes in a hospital study the mean noise level was 40.86 decibels and the standard deviation was 10.6 find the 99% confidence interval of the true mean of the noise levels in the operating rooms. assume the variable distributed. round your answers to two decimal places

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now