STATISTICS 324        Assignment 9        Due  Apr. 9, 2004

Exercises from the textbook, "Probability & Statistics for Engineering"
by J. Devore

Section 7.2:  12, 14, 17(but for 95% two-sided CI; also verify the value
of "SE Mean"), 19, 20, 23, 24, 25

Section 7.3:  32, 33, 36(but calculate two-sided intervals for all parts),
37(a)(b);
Section 7.4:  44, 46

Section 9.1:  1, 4(a), 8(b)--(i.e., provide standard error of your point
estimate, and give a 95% CI for difference of true mean strengths), 12;

Section 9.2:  20(use pooled t-variable procedure), 24, 25, 31(would pooled
t-variable procedure seem appropriate to use?), 34(a)