Problems 14-17 refer to the following minitab printout: Regression Analysis: coo

Question

Problems 14-17 refer to the following minitab printout: Regression Analysis: cooking time versus weight of Thanksgiving turkey The regression equation is time-1.41+ 0.494weight Predictor Constant weight 1.4104 0.4941 SE Coef 0.3817 0.1056 3.70 4.68 0.034 0.018 S?2? R-Sq2? R-Sq (adj) -83. 9% Analysis of Variance Source Regression Residual Error Total MS 1.3262 0.0606 DF 1.3262 21.88 0.018 1.5080 Obs weight 2.40 2.80 2.80 4.10 5.20 time Fit 2.596 2.794 2.794 3.436 3.980 SE Fit Residual St Resid 0.004 -0.294 0.306 -0.036 0.020 0.157 0.130 0.130 0.129 0.214 0.02 2.500 3.100 1.47 4.000

Explanation / Answer

14)

predicted cooking time =1.41+0.494*3=2.892

option C

15)

R2 =SSR/SST =1.3262/1.5080 =0.879~ 87.9%

option D

16)

s =sqrt(MSE)=sqrt(0.0606)=0.246

option e

17)

SD of cooking times =sqrt(SST/(n-1))=sqrt(1.5080/4)=0.614

option D

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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