A regression analysis relating test scores

Reference no: EM13331693

A regression analysis relating test scores (Y ) to training hours(X) produced the following fitted question: ^y = 25 - 0.5x.

(a) What is the fitted value of the response variable correspondingto x = 7?

(b) What is the residual corresponding to the data point with x = 3and y = 30?

(d) An additional test score is to obtained for a new observationat x = 6. Would the test score for the new observation necessarily be 22? Explain.

(e) The error sums of squares (SSE) for this model was found to be7. If there were n = 16 observations, provide the best estimate forσ2.

Reference no: EM13331693

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