STAT 704 Fall 2016
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Homework 5
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Do the following problems from the textbook (see notes below!):

6.5(a,b,d), 6.6(a,b), 6.7(a), 6.8, 
6.18(c,e), 6.19(a,c), 6.23(a), 6.25,
3.2, 3.3(c,d), 3.6(b,c), 3.16.


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(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 
mentions.

NOTE: For 3.3(d) and 3.6(c), you only need to do a normal Q-Q 
plot of the residuals and do the Wilk-Shapiro test for
the normality of the errors (and comment on what they imply).

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 the course web page.

Please write your answers neatly and clearly!