The mean output of a certain type of amplifier is 129 watts with a standard deviation of 11 watts. If 70 amplifiers are
Posted: Thu May 12, 2022 10:36 am
The mean output of a certain type of amplifier is 129 watts with a standard deviation of 11 watts. If 70 amplifiers are sampled, what is the probability that the mean of the sample would be greater than 130.2 watts?