Please kind i get a professional to help me with my homework questions on Statistic.
Do the following problems from the textbook (see notes below!):
6.2 6.5(abd) 6.6(ab) 6.7(a) 6.8
6.18(ce) 6.19(ac) 6.22(a c) 6.23(a)
3.3(cd) 3.6(bc) 3.16(a c d e f).
NOTE: Problems 6.5 6.6 6.7 6.8 6.18 6.19
3.3 3.3 and 3.16 require analysis using a
computer package such as SAS or R.
NOTE: For 6.5(a) use pairs(brand) and cor(brand) in R
NOTE: For 6.5(d) and 6.18(e) you only need to do the
residual plot of the residuals against the predicted
values Y-hat (i.e. the type of plot we did an
example of in class). You may optionally do the plots
of the residuals against the other terms the book
NOTE: For 6.8 interpret both the confidence interval and the prediction interval.
NOTE: For 6.23(a) will be counted as a 5 point bonus added to Exam 1. Do NOT use any resources but your notes and the textbook.
NOTE: For 3.16(c) note that the function for base-10
logarithms is log10( ) both in SAS and in R.
The Brand Preference Commercial Properties
and Solution Concentration data sets are
given on D2L.
Please write your answers neatly and clearly!
See the attached file for questions and data details.