STAT 704 Fall 2016 / STAT 705 Spring 2017
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Homework 1
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Do the following problems from the textbook:

19.1, 19.2, 19.3, 19.4, 19.5(a,b), 19.7, 19.13(b,c,d), 
19.16(c,d), 19.17(a,b,c,d), 19.31(b), 19.33(a,b,c,e)
19.48, 20.1, 20.2(a,b), 20.4

NOTE: Problems 19.13, 19.16, 19.17, 19.31, 19.33, 20.2, and 20.4
require analysis using a computer package such as SAS or R.

HINT:  For 19.3, use equation (19.8a) on page 823.

HINT:  For 19.4(b) and 19.5(a), use equations (19.4) and (19.5) on page 819.

NOTE: For 19.16(c,d), do the residual plot (vs. fitted values)
and the normal Q-Q plot of the residuals and comment on your findings.
Also, do the Brown-Forsythe test and the Shapiro-Wilk test on the
residuals and comment on your findings.

NOTE: For 19.17(a), "estimated treatment means plot" = "interaction plot".

NOTE: For 19.33(c), simply use the Bonferroni procedure to compare pairwise 
differences among the 3 makes for technician 1.  That is, compare 
mu_11 vs. mu_12, mu_11 vs. mu_13, mu_12 vs. mu_13.  This is most easily done
by using ESTIMATE statements to get each L-hat and the corresponding standard 
errors, and then using the proper Bonferroni correction to adjust the t-value.

The "Eye Contact Effect", "Disk Drive", and "Coin-operated Terminals"
data sets are given on the course web page.

Please write your answers neatly and clearly!