STATISTICS 324        Assignment 7        Due  Mar. 26, 2004

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

From Assignment 6, 
Section 4.6:  87 (data from Exercise 83(b) of Chapter 1, not 81, of Chap. 1;
also consider normal distribution for 1/4-root of data using normal prob. plot)


Section 5.3:  38 (but answer questions for sample mean Xbar = ( X_1 + X_2 )/2,
not for T_o = X_1 + X_2), (d) list the different values of Xbar that are
possible for random samples of size n = 4 from this distribution; also
find P( Xbar = 0 ) and P( Xbar = 1/4 ), 44 (read and consider)

Section 5.4:  46, 47, 48, 50, 52, 54, 57;   Section 5.5:  58,
62 (what is distribution of the total machining time, X_1 + X_2 + X_3),
66 (a), (b), (e), 73

Section 7.3:  28, 29;   Section 7.4:  42, 43