Tail-feather length in birds is sometimes a sexually dimorphic trait. That is, t
ID: 3075313 • Letter: T
Question
Tail-feather length in birds is sometimes a sexually dimorphic trait. That is, the trait differs substantially for males and for females. Researchers studied the relationship between tail-feather length (measuring the R1 central tail feather) and weight in a sample of 20 male long-tailed finches raised in an aviary. The data are represented in the following scatterplot, along with the least-squares regression line equation and the square of the correlation coefficient (R ).
110 T 100 90 80 70 60 50 y-2.8299x + 35.738 R2-02133 12 14 16 18 2022 Bird welght (g What is the slope of regression model for female? Should be the same as male, 0.2133 Should be the same as male, 35.738 Should be the same as male, 2.8299 No information availableExplanation / Answer
The correct option is "No information available". Because the regression model is for Male as it is done in a sample of 20 male. So from this model you cannot say anything about the regression model for female as the trait differ substantially for Male and for female.
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