This question is in honor of my alma mater, Texas Christian University
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This question is in honor of my alma mater, Texas Christian University. Young et al. (2006) studied horned lizard (aka horned frogs) survival at the hands of predators. They measured the length (in mm) of the squamosal horn of living horned lizards and of recently killed horned lizards to see if this structure might affect survival. For each outcome (alive or dead), they obtained data from 10 individuals from three populations. Live individuals were obtained from Lubbock, Austin, and Waco; dead individuals were obtained from Stillwater, Norman, and San Antonio. The lengths of the squamosal horn are given below for each population:
Condition
Population
Horn Length
Condition
Population
Horn Length
Alive
Lubbock
25.2
Dead
Stillwater
21.4
Alive
Lubbock
26.9
Dead
Stillwater
23.9
Alive
Lubbock
26.6
Dead
Stillwater
23.2
Alive
Lubbock
25.6
Dead
Stillwater
22.6
Alive
Lubbock
25.7
Dead
Stillwater
22.5
Alive
Lubbock
25.9
Dead
Stillwater
19.3
Alive
Lubbock
27.3
Dead
Stillwater
23.5
Alive
Lubbock
25.1
Dead
Stillwater
23.4
Alive
Lubbock
30.3
Dead
Stillwater
19
Alive
Lubbock
25.6
Dead
Stillwater
21.7
Alive
Austin
26
Dead
Norman
20.2
Alive
Austin
24.6
Dead
Norman
26.7
Alive
Austin
25.6
Dead
Norman
21.7
Alive
Austin
25.3
Dead
Norman
21
Alive
Austin
23.5
Dead
Norman
23.9
Alive
Austin
24.5
Dead
Norman
24.6
Alive
Austin
23.3
Dead
Norman
21.6
Alive
Austin
26
Dead
Norman
25.3
Alive
Austin
23.9
Dead
Norman
25
Alive
Austin
27.3
Dead
Norman
25.2
Alive
Waco
25.4
Dead
San Antonio
15.2
Alive
Waco
25.5
Dead
San Antonio
22.9
Alive
Waco
21.4
Dead
San Antonio
21.4
Alive
Waco
23.8
Dead
San Antonio
23.9
Alive
Waco
25.5
Dead
San Antonio
17.2
Alive
Waco
19.2
Dead
San Antonio
15.5
Alive
Waco
20.7
Dead
San Antonio
22
Alive
Waco
19.2
Dead
San Antonio
22
Alive
Waco
25.5
Dead
San Antonio
23.1
Alive
Waco
20.5
Dead
San Antonio
20.7
You should analyze these data using one of the following options: two-factor ANOVA; nested ANOVA; repeated-measures ANOVA. Which is the correct option, and why is that the best analysis to use?
Analyze the data using the ANOVA technique you selected for the answer to part A. The data may need to be rearranged in order to do this correctly in either Excel or some of the other online statistics calculators!
11 years ago
Answer for: This question is in honor of my alma mater, Texas Christian University
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