Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is XXXXXXXXXXdollars. Assume...

Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 158000 dollars. Assume the standard deviation is 41000 dollars. Suppose you take a simple random sample of 93 graduates.


Find the probability that a single randomly selected salary has a mean value between 157574.8 and 169479.1 dollars.

P(157574.8 X < 169479.1)="">

Find the probability that a random sample of size n=93n=93 has a mean value between 157574.8 and 169479.1 dollars.

P(157574.8 <>< 169479.1)="">