Sandy asks…How do i calculate the margin of error for this question?A sample of 25 students measured their reaction time by recording the distance a dropped ruler fell before they caught it. This was then repeated to see whether a learning effect was present. The mean decrease in drop distance between the two trials was 1.36 cm with standard deviation 2.066 cm. The margin of error for a 95% confidence interval for the mean decrease in drop distance for all students is___
please show working,
