Obstacle Course Times An obstacle course was set up on a campus, and 8 volunteers were given a chance to complete it whi

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Obstacle Course Times An Obstacle Course Was Set Up On A Campus And 8 Volunteers Were Given A Chance To Complete It Whi 1 (25 KiB) Viewed 21 times

Obstacle Course Times An obstacle course was set up on a campus, and 8 volunteers were given a chance to complete it while they were being timed. They then sampled a new energy drink and were given the opportunity to run the course again. The "before" and "after" times in seconds are shown below. Is there sufficient evidence at a=0.10 to conclude that the students did better the second time? Assume the variables are normally distributed. Student 1 2 3 4 5 6 7 8 Before 67 72 80 75 70 78 82 69 After 68 70 76 68 65 75 78 65 Send data to Excel