Using the Studentized Residuals Ti to Determine Influential Points in a Multiple

question 12

Multiple Choice

Using the Studentized residuals ti to determine influential points in a multiple regression model with k independent variable and n observations and letting t_n-k-2 denote the upper critical value of a two-tail t test with a 0.10 level of significance, X_i is an influential point if

• A) \( \left|t_{i}\right|< t_{n-k-2} \).
• B) \( \left|t_{i}\right|>t_{n-k-1} \).
• C) \( \left|t_{i}\right|< t_{n-k-1} \).
• D) \( \left|t_{i}\right|>t_{n-k-2} \).

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