question archive A fellow student says that the average salary of graduates in your major is 30,000 dollars per year
A fellow student says that the average salary of graduates in your major is 30,000 dollars per year
Subject:MathPrice: Bought3
A fellow student says that the average salary of graduates in your major is 30,000 dollars per year. You don't think that this is correct. You think that the average salary is higher than this. To show that your fellow student is wrong, you take a simple random sample of fifty graduates who have graduated in the past 5 years and ask for the amount of their starting salary. You find that the sample mean is 31,000 dollars. Assume the standard deviation is known to be 4,000 dollars. Is there evidence to support your claim that the population mean starting salary is greater than 30,000?
