Question

Suppose you wish to see if there is a relationship between the price (in $100) and rating (in points) of 7 laptop computers tested by Consumer Reports. You collected the information below. (See exercise 11 on page 614 of your textbook for a similar problem.) SS = SS= MSE = 42.2143 79.5714 18.5739 Question 1 Using the Ftable, find the p-value for the Global Fstat. 0.025 p-value 10.05 Question 2 Find the 99% CI for B1 (with appropriate units). Left Endpoint = -0.7896 dollars/point Right Endpoint = 4.5594 dollars/point- dollars/point points/dollar dollars points Click to Grade Your Work

I don't know what I'm doing wrong

Answer 1

8 S EC 13 ) = 0.6633 Also tarpt = tn-2942 = 75,0.01/2 = 4.032 8. 99.). confidence interval for Bi is 1-8849 I 40321 X 0.6633) 5 ( 1.8849 £ 2.6745) (-0.4896, 4.9994) cower limit = -0.7896 Upper limit = 14.5594

-Ang Given n=7 Sax - 42.2143 Sxy = 79.5714 MSE = 18.5739 Estal = mss Reg MSSE where MSSReg - B, sxy LO- Bi = Sxy = 79.5714 -11088497 sxr 42.2143 omssReg = 1.8849 X 79.5714 = 149.9873 & pstat - 149.9873 18.5789 Tostal = 8.0752 2.2) P-value 2PLIFIT Ecal IT - 20 F 1. 57,8 07527 = 0.036175 room f-rable 997. c for $18- ( Bi £ teoost X SEC Ê, )) het SEC BI) = mse SXXC = 18.5739 42.2143