Homework 6

due in class, Tuesday March 1

You must SHOW ALL WORK for full credit. Include only the most relevant parts of output from R (or whatever package you are using). Do not include a transcript of your entire session, just cut and paste (electronically or literally) the necessary parts. Please staple your assignment if it is more than one page.

Required problems:

1) 13.25 part (b) only (p. 503)
2) 13.40 (p. 514)
3) 13.54 part (b) only (p. 519)
4) 14.3 parts (a)-(c) (p. 548), note that for part (c) (and part (d) of the next problem), that is just their notation for the ordinary mulitple R-square
5) 14.63 parts (a)-(i), but just do a prediction interval for part (i) (don't do an interval for the mean) (p. 583)

Optional problems:

6) 13.62 (p. 531)
7) 13.70 parts (g), (h), (j), and (k) (p. 532-3)

If you have the 8th edition, the corresponding problems are:
1) 13.25 (p. 509), 2) 13.40 (p. 520), 3) 13.52 part (b) (p. 525), 4) 14.3 parts (a)-(c) (p. 557) (see note above), 5) 14.51 (a-i) (p. 584) (see note above), 6) 13.60 (p. 535), 7) 13.68 (p. 539)