Solutions Statistics

Two independent random samples of annual starting salaries for individuals with masters and bachelor

Question: Two independent random samples of annual starting salaries for individuals with masters and bachelors degrees in business were taken and the results are shown below

			Masters Degree	Bachelors Degree
Sample Size			33	30
Sample Mean (in $1,000)			58	54
Sample Standard Deviation (in $1,000)			2.4	2
	a.	What are the degrees of freedom for the t distribution?
	b.	Provide a 95% confidence interval estimate for the difference between the salaries of the two groups.