(Solved): A statistics teacher wants to see if there is any difference in the abilities of students enrolled ...

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. The \( 98 \% \) confidence interval for the difference between the two population means is \[ -9.92 \text { to }-2.08 \] \( -10.66 \) to \( -1.34 \) \( -13.84 \) to \( -1.16 \) \( -24.77 \) to \( 12.23 \)