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An obstacle course was set up on a campus, and 11 volunteers were given a chance to complete it while they were being ti
Posted: Sun Oct 03, 2021 11:25 am
by answerhappygod
- An Obstacle Course Was Set Up On A Campus And 11 Volunteers Were Given A Chance To Complete It While They Were Being Ti 1 (221.58 KiB) Viewed 49 times
- An Obstacle Course Was Set Up On A Campus And 11 Volunteers Were Given A Chance To Complete It While They Were Being Ti 2 (113.45 KiB) Viewed 49 times
An obstacle course was set up on a campus, and 11 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. (Consider the difference D= Before - After) Before 76 81 75 77 67 72 80 70 82 78 69 After 73 76 73 68 68 70 76 65 75 65 78 a) State the hypotheses and identify the claim with the correct hypothesis. O 1. Ho:PD =0 Not claim H1 HD 0 claim 2. Ho:PD20 Not claim H1:HD <0 claim 3. Ho:HD <0 Not claim H1:PD > claim
b) Find the critical value (s). o 1. CV=1.372 O 2. CV= 1.812 3. CV= -2.228