STATISTICS 224        Assignment 9        Due  Apr. 15, 2004

Exercises from the textbook, "Probability & Statistics for Engineers"
by R. Johnson

Section 7.8:  7.67(but instead of testing a hypothesis, find a 90% CI for
mu_1 - mu_2; based on this CI, does mu_1 - mu_2 = 1.5 appear to be
an "acceptable" value), 7.73

Section 7.4:  7.28, 7.30, 7.32 [first express rejection region in terms of
test statistic Z = ( Xbar - 100 ) / (12/ sqrt{40} ) ], 7.34(b), 7.36(a)

Section 7.7:  7.41 (give approx. P-value of test statistic), 7.44, 7.46, 7.47,
7.52, 7.60&7.61(only read)

Section 9.2:  9.20, 9.22(a), 9.24 (must use exact binomial dist. since n is
not large)