Obstacle Course Times An obstacle course was set up on a campus, and 10 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=.05 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, 9, 10 Before 68, 76, 81, 75, 77, 67, 72, 80, 70, 78 After 70, 73, 76, 68, 73, 68, 70, 76, 65, 75 1. State the hypotheses and identify the claim H0: H1: Is this test one tailed or two tailed? 2. Find the critical value(s) critical value(s) = 3. Compute the test value= t=
Obstacle Course Times An obstacle course was set up on a campus, and 10 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=.05 to conclude that the students did better the second time? Assume the variables are
Student 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Before 68, 76, 81, 75, 77, 67, 72, 80, 70, 78
After 70, 73, 76, 68, 73, 68, 70, 76, 65, 75
1. State the hypotheses and identify the claim
H0:
H1:
Is this test one tailed or two tailed?
2. Find the critical value(s)
critical value(s) =
3. Compute the test value=
t=
4. Do not reject or Reject the null hypothesis
5. Is there enough evidence to support the claim
Please answer all parts of each question 1-5 and be sure the degree of freedom calculation is correct before calculating 2 and 3 as those are commonly answered incorrectly. Thanks in advance for the help.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
