bachelor’s degree graduate? It is desired to estimate the difference between the mean starting salaries for all bachelor’s
degree graduates of the University of X in the College of Engineering and Education during the past
year. The following information is available:
1. A random sample of 40 starting salaries for College of Engineers graduates produced a
sample mean of $22653 and a standard deviation of $4172.
2. A random sample of 30 starting salaries for College of Education graduates produced a
sample mean of $12291 and a standard deviation of $3864.
Construct a 95% confidence interval for the difference between mean starting salaries for
graduates of the two colleges. Interpret the interval.
degree graduates of the University of X in the College of Engineering and Education during the past
year. The following information is available:
1. A random sample of 40 starting salaries for College of Engineers graduates produced a
sample mean of $22653 and a standard deviation of $4172.
2. A random sample of 30 starting salaries for College of Education graduates produced a
sample mean of $12291 and a standard deviation of $3864.
Construct a 95% confidence interval for the difference between mean starting salaries for
graduates of the two colleges. Interpret the interval.