Hand in Friday OCT 12
Residuals plots:  Due Friday Oct. 12 (day 21) so you don't have to worry about needing SPSS  or a computer over break (these are the Postponed parts fromDay 17): 
 p. 129, 5.7 fuel residuals. You did the book questions. Now, in SPSS, Make a variable containing the residuals (Handout, bottom p. 4.  Also middle-bottom of Day16.)  The values should match the ones in the book/SPSS file.
SPSS Handout p. 3 (Governors' salaries):  You can now finish #12, the last question.  Hand it all  in now.
p.133, 5.9 (SPSS) Farm population You did a, b, c (read p. 132 for a good word to use in part c).  Now, make a variable containing the residuals, and plot it against the x (year) values.  Draw (in pencil) a horizontal line at height 0.  What pattern do you see in the residuals?
B.  Use Residuals.xls from the website or the lab to graph these data sets, along with a graph of the residuals.  Print the results, and describe the shape of the residuals (it may help to connect the dots with pencil, to see the pattern.) 
a)  x 1 2 8 4 6 9 
    y 1 3 6 6 7 5 
b) x 1 2 7 4 6 9
   y 7 6 2 4 2 1

& & & & & & & & & & & & & &
Hand in  NOTHING (enjoy the break and/or read/work ahead...)
Will be assigned the first class after break (Wed. Oct. 10, Day 20)

p. 136 5.13 hospitals: big = bad?

p. 192, 8.1, 8.2, 8.3 expt, obsn
p. 207, 8.27 Alcohol & heart attacks

p.209-10, 8.38 b only Traffic lights
p. 208, 8.30 movie viewing

p. 136,  5.12 lurking variables
p. 208, 8.29 safety of anesthetics
p. 192 8.3 TV & aggression (lurking)
 .Postpone . .
p.195, 8.8 more Sampling badly on campus
- - - -
p. 211, 8.47 guns

p. 204, 8.14, 8.15 biases.
p. 208, 8.31 world affairs
p. 211, 8.46 wording survey questions