Below are the data of an course that prepares students for standardized testing. The data below show pretest (test on day 1) and a post test (test after taking the course) scores of students who enrolled. Use this data to answer the following questions.
$$\begin{array} { c c }
\hline \text { Pretest } & \text { Posttest } \
\hline 650 & 720 \
580 & 640 \
590 & 680 \
760 & 770 \
590 & 580 \
620 & 650 \
740 & 720 \
580 & 610 \
690 & 670 \
610 & 650 \
620 & 630 \
640 & 680 \
590 & 670 \
\hline
\end{array}$$ Calculate the 95% confidence interval for the mean difference

Question

Below are the data of an course that prepares students for standardized testing. The data below show pretest (test on day 1) and a post test (test after taking the course) scores of students who enrolled. Use this data to answer the following questions.
 $$\begin{array} { c c } 
\hline \text { Pretest } & \text { Posttest } \
\hline 650 & 720 \
580 & 640 \
590 & 680 \
760 & 770 \
590 & 580 \
620 & 650 \
740 & 720 \
580 & 610 \
690 & 670 \
610 & 650 \
620 & 630 \
640 & 680 \
590 & 670 \
\hline
\end{array}$$ Calculate the 95% confidence interval for the mean difference

Quizplus · Accepted Answer

The Answer of Below are the data of an course that prepares students for standardized testing. The data below show pretest (test on day 1) and a post test (test after taking the course) scores of students who enrolled. Use this data to answer the following questions.
 $$\begin{array} { c c } 
\hline \text { Pretest } & \text { Posttest } \
\hline 650 & 720 \
580 & 640 \
590 & 680 \
760 & 770 \
590 & 580 \
620 & 650 \
740 & 720 \
580 & 610 \
690 & 670 \
610 & 650 \
620 & 630 \
640 & 680 \
590 & 670 \
\hline
\end{array}$$ Calculate the 95% confidence interval for the mean difference

Below Are the Data of an Course That Prepares Students