The mean annual salary of all the frontlines (nurses, medical technologists, radiologists, phlebotomists) in the Philippines is Php 42,500. Assume that this is normally distributed with standard...

The mean annual salary of all the frontlines (nurses, medical technologists, radiologists, phlebotomists) in the Philippines is Php 42,500. Assume that this is normally distributed with standard deviation Php 5,600. A random sample of 25 health workers is drawn from this population, find the probability that the mean salary of the sample is greater than Php 41,000?