A statistics teacher wants to see if there is any difference in the abilities of students enrolled in statistics today and those enrolled five years ago. A sample of final examination scores from students enrolled today and from students enrolled five years ago was taken. You are given the following information.

	Today	Five Years Ago
X bar	82	88
2	112.5	54
n	45	36

The point estimate for the difference between the means of the two populations is?

The standard error of-is?

The 95% confidence interval for the difference between the two population means is?

The test statistic for the difference between the two population means is?

The p-value for the difference between the two population means is?

What is the conclusion that can be reached about the difference in the average final examination scores between the two classes? (Use a .05 level of significance.)?