Question

Rafting down two different rivers took place. 302 boats rafted down the first river, and accidents (capsizing, boat damage, etc.) happened to 38 of them. 82 boats rafted down the second river, and accidents happened to 22 of them. Use the z-values rounded to two decimal places to obtain the answers. a) The second river is considered to be a more complicated route to raft. Is there evidence for this assumption? Find the P-value of the test. Use a=0.10. Round your answer to four decimal places (e.g. 98.7654). P-value = 0.00001 b) Construct a 90% one-sided confidence limit for the difference in proportions that can be used to answer the question in part (a). Round your answer to four decimal places (e.g. 98.7654). P2 - Pi?

Answer 1

Answer Given that o Rafting down two different took place 302 boats rolled down the first river and accidents happend to 38 of them. 82 boats rafted down the second river, and accidents happend to 22 of them cas n, - 302, 2,-38 n2 = 82, -22 0-126 P = 2 no 38 302 - 0.268 22 92 Ř = att nit 39 +22 302 +82 60 384 Test statistic P.-P2 Paclap) 4 (2 + 1 h) (2)-() z = che non ci Cataste) 60 384) 22 - 3.15 Povlue at 2=0.60 left tailed is 0.0008

(ط (P2P) -22 PUI-R).PCI) ni D 28 22 82 ) (B)C) (२)() .१.२४२ 302 + 302 82 - 0.005)