Question
Assume that the residuals are independent, homoscedastic, and normal. Given the following summary information: r =...
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Assume that the residuals are independent, homoscedastic, and normal. Given the following summary |
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information: r = -0.6 . If the percentile rank of x is 35.0% , predict the percentile rank of y |
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with the help of the regression line. |
Homework Answers
Answer #1
- transform the percentile rank for x into standard units by using the normal table.
- multiply x by the correlation coefficient to obtain the predicted y in standard units.
- Use the normal curve again to go from y in to a percentile
It means that
Compute zy = zx × r.
Thus the required percentile
rank of Y is 59.5%.
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