immigration to the colony would: *   increase by 34%       increase by 3.4%       decrease by 0.34%       decrease by 3.4%

MATLAB: An Introduction with Applications
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Regression analysis was applied to return rates of sparrow hawk colonies. Regression analysis was used to study the relationship between return rate (x: % of birds that return to the colony in a given year) and immigration rate (y: % of new adults that join the colony per year). The following regression equation was obtained :Y = 31.9 – 0.34x. Based on the above estimated regression equation, if the return rate were to decrease by 10% the rate of immigration to the colony would: *

 

increase by 34%
 
 
 
increase by 3.4%
 
 
 
decrease by 0.34%
 
 
 
decrease by 3.4%
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