he noise level (decibels) found in 40 readings near a certain airport found a mean of 61.2 with a standard deviation of 10.3. (a)Give a 98% C.I, for the true mean decibel level of noise near the airport. (b)At the 0.01 level, can it be concluded that mean noise level differs from 62.0? (c)Give the p-Value in (b)