Math 151 , Fall 2006 Friday Day 19, Oct. 6 Hit reload...

HW:  Reading:  For Wednesday:  (Re) read pp. 133-136.  Skip Chapter 6.  Read Chapter 8.  Check p. 206, 8.17-22, 26 at first.
Hand in  Wednesday (have a great break!)
If you didn't do this last class: Pick a digit (from 0,1,2,3,4,5,6,7,8,9).  Write it down.  Write it to the left of your name on the sign in sheet Wednesday.

A .  Use the Excel RSquared page. ( R-Squared (or RSquared.xls: ClassMaterial\Math151BPS4e\RegressionDemosExcel BPS4eLab version is difficult to use.If R-Squared doesn't have "repaired 10/3/06 in cell 2-o, use this link: R-Squared2 ). Shift points around and get an r2 close to .8 (80%) (Between .75 and .85 is good enough.).  Note that if r = +.9, then  r2 = .81.   Now shift the points so that r is negative and r2 is close to .8.  Print the resulting page to hand in. (Data and graph)

Read, to discuss 


Optional 


Exam 2 Friday Oct. 6, Day 19, Today. One sheet of notes; I will give you normal tables.
Sign up today on signup sheet to start early Friday.  Contact me today at the latest for any other arrangements.
 Sample exam handed out, & Solutions available outside my office  & on reserve.  You should be able to do all the parts on the sample exam.
   Covers Chapters 3, Normal distribution (with tables), 4&5, Scatterplots, Correlation, Regression, to p. 132 (Extrapolation).
You will not be asked how to CREATE SPSS output.  You may be asked to USE and INTERPRET SPSS output.
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