209k views
1 vote
An operation manager at an electronics company wants to test their amplifiers. The design engineer claims they have a mean output of 451 watts with a variance of 144. What is the probability that the mean amplifier output would be greater than 449.8 watts in a sample of 76 amplifiers if the claim is true?

1 Answer

6 votes

Answer:

sorry for that i did not about that give a thanks and save water for feuter . jal

User Fero
by
6.9k points