In Seychelles warblers, young adult females known as subordinates sometimes hang
ID: 3316026 • Letter: I
Question
In Seychelles warblers, young adult females known as subordinates sometimes hang around the territories of older birds. Sometimes these subordinates help feed the offspring of the older birds, and sometimes not. In one study, subordinate birds that did not help were genetically assessed to discover whether they were related to the offspring of the older birds (Richardson et al et al . 2003). A "relatedness" score was assigned to each subordinate, with a value of zero meaning no relationship to the offspring. Suppose that out of five subordinates examined, the mean relatedness was -0.02 with standard deviation 0.5 (relatedness can be negative if by chance sampled individuals are less related than the population as a whole). What is the 95% confidence interval for relatedness of unhelpful subordinates to the offspring? Give your answers to three decimal places.
( , )
Explanation / Answer
The statistical software output for this problem is:
One sample T summary confidence interval:
: Mean of population
95% confidence interval results:
Hence,
95% confidence interval will be:
(- 0.641, 0.601)
Mean Sample Mean Std. Err. DF L. Limit U. Limit -0.02 0.2236068 4 -0.64083198 0.60083198Related Questions
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