The Red-winged blackbird ( Agelaius phoeniceus ) is a very common polygynous (mu
ID: 3317865 • Letter: T
Question
The Red-winged blackbird (Agelaius phoeniceus) is a very common polygynous (multiple mating) species in North America. Size tends to influence reproductive success by influencing the territory that a male can control, so a group of ornithologists was interested to see if the wingspan length was related to overall length of the bird including the tail feathers in male red-wing blackbirds. To assess this they collected 100 male red-wing blackbirds and measured their wing span (in centimeters) and their overall head to tip of the tail feathers length (in cm).
What would be the best test to use?
A. Kruskal-Wallis test
B. Sign test
C. 2 test of association
D. Wilcoxon signed-ranks test
E. Correlation analysis (Pearson correlation)
F. Two-way analysis of variance with interactions (factorial design)
G. Paired t-test
H. The Anderson-Darling test
I. binomial test (proportions test)
J. Two-way analysis of variance without interactions (repeated measures ANOVA)
K. The Bartlett test
L. One-way analysis of variance
M. 2 goodness-of-fit test
N. Mann-Whitney test
O. Correlation analysis (Spearman rank correlation)
P. 2 sample t-test
Q. Two-way analysis of variance without interactions (randomized block design)
R. Linear regression
Explanation / Answer
Chi square test of association is used to test if there is any relation between the two variables.
In this question the two variables are the length of wing span and the height from head to tail.
Hence option C is right
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