show all work NOT THROUGH EXCEL!

for part (c) , and (d) do not answer incompletly by saying "if critical value > then reject", show the actual critical value and give your THOROUGH conclusion. answer COMPLETLY NOT THROUGH EXCEL

this is the fourth time posting this. please do not answer without satisfying the above instructions.

A statistios 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 sumple of final examination scores from students enrolled today and from students enrolled five years ago was taken. You are given the following information. (a) Formulate the null and alternative hypotheses to test whether there is a difference between the means of the two populations. (b) Compute the test statistic. (c) Using the critical approach, what is your conclusion? Let =0.05. (d) Using the p-value approach, what is your conclusion? Let =.05