Least squares estimation of the parameters in Model B yielded the following equation and residual plot. Which of the following conclusions is correct? (A) Model is appropriate, since the relationship between and is linear. A x y (B) Model is appropriate, since the relationship between and is linear. B x y (C) Model is appropriate, since the relationship between log and log is linear. A x y (D) Model is appropriate, since the relationship between log and is linear. A x y (E) Model is appropriate, since the relationship between and log is linear. B x y 2007 MC Answer Key 1. C 5. C 2. E 6. B 3. C 7. D 4. A 8. C
Least squares estimation of the parameters in Model B yielded the following equation and residual plot. Which of the following conclusions is correct? (A) Model A is appropriate, since the relationship between x and y is linear. (B) Model B is appropriate, since the relationship between x and y is linear. (C) Model A is appropriate, since the relationship between log x and log y is linear. (D) Model A is appropriate, since the relationship between log x and y is linear. (E) Model B is appropriate, since the relationship between x and log y is linear. 2007 MC Answer Key 1. C 2. E 3. C 4. A 5. C 6. B 7. D 8. C