I've just finished wading through Chap. 9-1 of IPS on Inference for Regression. I too am wondering just how deeply the AP Test is expecting students to go on this. The TI-83s don't do these calculations easily like the t- and z- tests. Will the kids have to compute all these nasty squares-of-sums etc?
It seems to me that the kinds of questions they will ask might be related to computer output such as is seen in IPS on p. 644, p. 645 and 651. In other words, interpret the results rather than do the actual calcuations. What do others think? Can we get some direction from the AP board as the fateful May 6 day approaches?
Louise Hilton email: firstname.lastname@example.org Bingham High School 2160 Miner Mile South Jordan, UT 84095 (801)256-5100 Fax: 801-256-5151