MATH 251, Probability and Statistics I, Fall 2001, Mon. Oct. 1, Day 14 Final version

Read Sec. 3.1, 3.2

Hand in:  (sec 3.1--expl/resp, obsn/expt)  p. 237, 3.7  - - - - - - - - - - - -  Sec 3.2, designing  p. 250 ff. 3.9 & 13 sickle cell 3.12 corn 3.24 meditation 3.20 design exp, or impossible Randomize (use table B unless otherwise noted)  3.15  3.31  3.32  Use SPSS (picking random sample is in the manual, ch. 3)  If you want to save the record of the sample picked, double click on the  filter_$ variable label and change it to sample1 (for instance).  Then your next sample will be filter_$  again....  You can find descriptives (mean, s.d.) of those chosen and not chosen  following the Working with Subgroups handout.  Most efficient is  Analyze, compare means. Use the filter variable as the independent,  the variable you want means for as the dependent.  Be sure to pick the desired statistics..  - - - - - - -  Do with Day 15 assignment:  Matched pairs  3.25 rt, left hands Block  3.27

Read, discuss  3.2, 3, 4, 5, 6, 8 for the variety  - - - - - - - - - -  - 3.18, 19  3.10  3.26

Optional