Elementary Statistics: A Brief VersionElementary Statistics: A Brief Version

Hi,

I have the answers but I need to show the "TI-83 work calculations (aka actual steps and buttons pressed on the ti83) and also summarize it in at least 5-7 sentences. Thanks.

Salaries for Actuaries The average salary for graduates entering the actuarial field is $40,000. If the salaries are normally distributed with a standard deviation of $5000, find the probability that

a.An individual graduate will have a salary over $45,000.

Solution:

Answer: .1587

b.A group of nine graduates will have a group average over $45,000.

Answer:.0013