Question

A headline in a certain newspaper states that "most stay at first job less than 2 years" that headline is based on an online pole of 300 college graduates among those polled 84 percent stayed at their first full time job less than 2 years

a. assuming that 50 percent is the true precentage of graduates who stay at their first job less than two years find the mean and standard deviation of the numbers of such graduates in randomly selected groups of 300 graduates

Answer 1

b. Assuming that the 50 percent rate in part (a) is correct find the range of usual values for the numbers of graduate among 300 who stay at their first job less than two years

c find the actual number of surveyed graduates who stayed at their first job less than two years use the range of values from part b determine whether that number is unusual