Makers of a new pain-relieving medication claim that it relieves chronic pain faster than the current top-selling pain reliever on the market. A double-blind experiment was conducted in which 10 people who experience chronic pain were randomly selected to take either the new or the current medication. Each of the 10 people recorded the time, in minutes, from taking the medication until pain relief. After an appropriate time period, each of the 10 people took the other medication and recorded the time from taking the medication until pain relief. Which of the following values is closest to the standard error to use in the denominator of the t test statistic for testing for the question of interest (assuming population normality assumptions are met)? Minutes until Pain Relief New Medication Current Medication Difference (new minus current) Mean 15.600 16.025 -0.425 SD 4.811 4.833 1.395