2. You are interested in the effect of replacement fluids on the fatigue index o
ID: 3023212 • Letter: 2
Question
2. You are interested in the effect of replacement fluids on the fatigue index of a human. In order to run this test, you have people riding stationary bicycles until they can go no longer. As they ride, you give them different types of fluids. You are trying to find out how the different fluids affect the ride-to-exhaustion times. You take three groups of people and test them. The data are below, given in minutes of ride time.
Water
Gatorade
Coca-Cola
80
67
87
86
45
99
45
65
87
98
54
67
65
76
88
77
85
94
a. What is the dependent measure?
b. What is the independent measure?
c. What is the p-value?
d. What is the interpretation of the test?
e. Why do you not do post-hoc testing on these results?
Water
Gatorade
Coca-Cola
80
67
87
86
45
99
45
65
87
98
54
67
65
76
88
77
85
94
Explanation / Answer
a)
ride-to-exhaustion times [ANSWER]
***********
b)
Type of replacement fluids
*************
Consider thesummary of the results of the one way anova test:
c)
P = 0.069973504 [ANSWER]
************
d)
As P > 0.05, there is no significant difference between the mean ride-to-exhaustion times.
***************
e)
Because the differences are not significant at 0.05 level.
Anova: Single Factor SUMMARY Groups Count Sum Average Variance Column 1 6 451 75.16667 335.7667 Column 2 6 392 65.33333 209.0667 Column 3 6 522 87 118.8 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 1412.333 2 706.1667 3.192275 0.069974 3.68232 Within Groups 3318.167 15 221.2111 Total 4730.5 17Related Questions
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