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Unformatted text preview: d. t 13 e. i. CI: (3.58, 8.42) iii. EB = 2.42 Solution to Exercise 8.11 (p. 125) a. i. 320 ii . 400 iii. 0.80 c. N ± 0.80, q ( 0.80 )( 0.20 ) 400 ² d. i. CI: (0.76, 0.84) iii. EB = 0.04 Solution to Exercise 8.13 (p. 126) b. N ± 0.61, q ( 0.61 )( 0.39 ) 1200 ² c. i. CI: (0.59, 0.63) iii. EB = 0.02 Solution to Exercise 8.15 (p. 127) b. N ± 0.86, q ( 0.86 )( 0.14 ) 323 ² c. i. CI: (0.8229, 0.8984) iii. EB = 0.038 Solution to Exercise 8.17 (p. 127) a. i. 7.9 ii. 2.5 iii. 2.8 iv. 20 v. 19 c. N ³ 7.9, 2.5 √ 20 ´ d. i. CI: (6.98, 8.82) iii. EB: 0.92 Solution to Exercise 8.19 (p. 128) a. t 83 b. average cost of 84 used cars c. i. CI: (5740.10, 7109.90) iii. EB = 684.90 Solution to Exercise 8.21 (p. 128) b. N ± 0.63, q ( 0.63 )( 0.37 ) 1000 ² c. i. CI: (0.60, 0.66) iii. EB = 0.03...
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This document was uploaded on 10/31/2011 for the course STA 2023 at University of Florida.
 Fall '08
 Ripol
 Statistics, Mutually Exclusive

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