Answer the following questions please Q1) HINT: if the answer isn\'t obvious to

Question

Answer the following questions please

Q1) HINT: if the answer isn't obvious to you, consider building a set of example data (for paired variables X and Y) that fit the question, then adding 10 to each data point for your Y variable. Calculate the regression line in each case (with and without the additional 10) to find your answer.

Question 1 (10 points) Suppose you have variables X and Y, and you attempted to regress Y on X (i.e., predict Y from X). If you add 10 to the value of every Y data point, what will happen to the equation of the best fitting line through your points? Please Select an Option Neither the slope nor intercept would change. The slope and intercept would increase by 10. The slope would increase by 10, but the intercept would not change The intercept would increase by 10, but the slope would not change.

Explanation / Answer

Q1.

Intercept would increase by 10, but the slope won't change.

Reason: Value of the slope in dependent primarly on the variable X. The factor (Yi-Mean) returns the same value after addition constant 'k' to the each value response variable

(Xi-Mean)*(Yi-Mean) / (Xi - Mean)^2

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