For the Situation Above, Give a Practical Interpretation Of $\hat { \beta } _ { 1 } = 228$

question 25

Multiple Choice

For the situation above, give a practical interpretation of $\hat { \beta } _ { 1 } = 228$ .

• A) We expect to predict SALARY to within \(2 ( 228 ) = \$ 456\) of its true value using GMAT in a straight-line model.
• B) We estimate GMAT to increase 228 points for every \(\$ 1\) increase in SALARY.
• C) We estimate SALARY to increase \(\$ 228\) for every 1-point increase in GMAT.
• D) The value has no practical interpretation since a GMAT of 228 is nonsensical and outside the range of the sample data.

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