Birds of prey (e.g. hawks) may have different preferences for the height of perc
ID: 3182715 • Letter: B
Question
Birds of prey (e.g. hawks) may have different preferences for the height of perches they select in a forest. A researcher hypothesized that dietary preferences affect the types of prey they select for hunting. They predicted that hawks that commonly hunt ground dwelling mammals, such as red-tail hawks, would select taller perches than turkey vultures (carrion birds), and cooper's hawks that commonly hunt other birds. Her response variable is the average height (meters) that hawks were seen perching in an area per day. The treatment is the different bird species (RTH = red-tailed hawk; CH cooper's hawk; and TV = turkey vulture). What type of statistics should be used to analyze this problem? Analyze her data by providing a complete analysis (descriptive statistics, ANOVA- if necessary).Explanation / Answer
ANOVA would be used for compare the means of three different treatments.
Source DF SS MS F P
Tratment 2 6627 3314 12.52 0.001
Error 15 3972 265
Total 17 10599
S = 16.27 R-Sq = 62.53% R-Sq(adj) = 57.53%
Conclusion: The p-value of the F-statistic is 0.001. Hence we can not accept the null hypothesis and accept the alternative hypothesis that is at leat one mean of a treatment has significant different from remaining two means.
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