A consumer group rates 54 cars on Cost/Mile, a Road-Test score given by an exper

Question

A consumer group rates 54 cars on Cost/Mile, a Road-Test score given by an expert driver, Predicted Reliability based on historical repair records for the cars, and a Value Score given by owners of the cars. Above is multiple regression output (with deletions) from Minitab relating these variables. Use it to answer Questions 26-31 . Regression Analysis: Value Score versus Cost/Mile, Road-Test Score, Predicted Reliability Model Summary S R-sqR-sq (adj) 0.0721260 Coefficients Term Constant Cost/Mile Road-Test Score Predicted Reliability 0.1651 0.0102 Coef SE CoefT-Value P-Value 1.2444 0.0927 13.42 0.000 -2.043 0.105 0.01138 0.00123 9.250.000

Explanation / Answer

30) as prediction interval gives confidence for a single value while confidence interval gives confidence for mean value from above

option D is correct

31)

here predicted value =(1.68659+1.76364)/2=1.7251

hence residual =actual value-predicted value =1.94-1.7251=~ 0.21

option A is correct

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.