Math 373
Hw 20 Recommended problems, don't turn this in.
Rec 340: 9.15, 9.17, 9.19. 346: 9.25, 9.27, 9.29.
Hw 340: 9.14, 9.18. 346: 9.24, 9.28.
Page 340. 9.15. Random samples of 36 and 45 observations are drawn from populations 1 and 2.
Sample 1 Sample si
Math 373
Hw 27 Recommended problems, dont turn this in.
Hw 453: 11.29', 11.31'. Rec 453: 11.29, 11.31.
(d)(2) Find the 95% confidence interval for the difference Page 453. in means for treatments A and B. 11.29(14). There are three blocks 1, 2, 3 and four
Math 373
Hw 26 Recommended problems, don't turn this in.
Hw 438: 11.7,8. Rec: 438: 11.1 - 11.6.
Page 438. 11.3. You have 6 treatment populations based on independent random samples (hence they have a commen std. dev.). Each has 10 observations. Suppose to
Math 373
Hw 24 Recommended problems, don't turn this in.
Rec 390: 10.29. 10.35. 400: 10.45. 10.49.
Hw 390: 10.29', 10.32. 400: 10.44, 10.46
Page 390. Interval checksums are to 2 decimal places. 10.29(4). A paired difference test with 10 difference pairs h
Math 373
Hw 25 Recommended problems, don't turn this in.
Hw 400: 10.44. 407: 10:54, 10:56. Rec 407: 10.55', 10.57, 10.58.
Page 400. 10.55'. Independent random samples from two normal populations have the following sizes and sample variances. You wish to f
Math 373
Hw 23 Recommended problems, don't turn this in.
Rec 383: 10.19, 10.25. 390: 10.29, 10.31, 10.33.
Hw 383: 10.16, 10.18, 10.22. 390: 10:29-31.
Page 383. 10.19. Independent random samples of n1= 16 and n2= 13 are selected from two normal populations
Math 373
Hw 14 Recommended problems, don't turn this in.
Hw 292: 8.22, 8.24. 298: 8.36, 8.40.
Page 392.
8.21 Find the 90% confidence interval for the population
mean .
(a) n = 125, x = .84, s2 = .086
Rec 292: 8.21, 8.23. 298: 8.35, 8.41.
8.41 To compare t
Math 373
Hw 17 and 18 Recommended problems, don't turn this in.
Hw 335: 9.2abc, 9.4abcd, 9.8, 9.10'. Rec 335: 9.1, 9.7, 9.9, 9.11.
Page 335. 9.1 Find the appropriate acceptance and rejection regions for the large-sample test statistic z in each case. (a)
Math 373
Hw 16 Recommended problems, don't turn this in.
Hw 308: 8.56, 8.58, 8.60b, 8.62. 8.64. Rec 308: 8.55, 8.57, 8.61, 8.63.
Page 308. Let E = the maximum allowed error.
Write both the answer n and the unsimplified equation for n. For example, if the
Math 373
Hw 15 Recommended problems, don't turn this in.
Rec. 302: 8.45, 8.47, 8.51. 308: 8.53.
Hw 302: 8.44, 8.46, 8.50. 308: 8.54.
Page 302. 8.45 Independent samples of n 1 = 800 and n 2 = 640 observations are selected from binomial populations 1 and 2
Math 373
Hw 19 Recommended problems, don't turn this in.
Hw 336: 9.4, 9.11. Rec 336: 9.1, 9.7, 9.9, 9.11.
Page 335. Acceptance intervals are repeated from the recommended exercises for Hw 17. 9.7 A random sample of 100 observations from a quantitative pop
Math 373
Hw 28 Recommended problems, don't turn this in.
Hw 463: 11.40, 11.42 Rec 463: 11.39, 11.41, 11.43.
Page 463.
11.40'. We have a 32 experiment. Factor A has 2 levels,
cfw_1, 2, factor B has 3 levels cfw_1, 2, 3. There are 3
observations per treatme