State the hypotheses, identify the claim with the correct hypothesis, and determine whether it is a one-tailed or two-tailed test. (ii) Find the P-value. Round the answer to at least four decimal places. (iii) Make the decision and summarize the results.
State the hypotheses, identify the claim with the correct hypothesis, and determine whether it is a one-tailed or two-tailed test. (ii) Find the P-value. Round the answer to at least four decimal places. (iii) Make the decision and summarize the results.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
(i) State the hypotheses, identify the claim with the correct hypothesis, and determine whether it is a one-tailed or two-tailed test.
(ii) Find the P-value. Round the answer to at least four decimal places.
(iii) Make the decision and summarize the results.

Transcribed Image Text:Obstacle Course Times An obstacle course was set up on a campus, and 9 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
Before
After
1
69
78
Send data to Excel
2
80
3
76
75 73
4
75
68
5
72
76
6
70
70
7
67
68
8
78
65
9
68
65
olo
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