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Statistics Help...?
I need help with these kinds of problems...generally if I get an equation and understand how to do it, I'm set, so I'm only asking for a simplified process of how to do this.
The regression equation relating tar content (y) of cigarettes with CO content x is:
ŷ = -0.6569 + 1.01(x).
Suppose a certain brand of cigarettes has a CO content of 14 mg and tar content of 13.7 mg. The residual for this brand is ______. Give your answer to one decimal place.
1 Answer
- ?Lv 66 years agoFavorite Answer
Simply sub in the x (14mg) and find out the predicted y. The difference between the predicted y and the actual y is R-----the residual----how well the regression equation fits that example.
https://en.wikipedia.org/wiki/Errors_and_residuals
Let me know thru comments if you have trouble with this.
