Question

For Questions 1-4, consider the following: The U.S.Census Bureau conducts annual surveys to obtain information on the percentage of the voting-age population that is registered to vote. Suppose that 700 employed persons and 300 unemployed persons are independently and randomly selected and that 500 of the employed persons and 200 of the unemployed persons have registered to vote. Can we conclude that the percentage of the employed workers (p1), who have registered to vote, exceeds the percentage of unemployed workers (p2), who have registered to vote? What is the alternative hypothesis? Hapip2 Hapi p2 Hapi-p2 Hapip2 Hapip2

Answer 1

Here we have ma 2 n, a 2700 300 H2 = 200 2 =500 " 1 ( 500 700 Pe 2 X2 2 200 300 D 20:7143 -0.667

Hypothesis Hoi Pi P2 Ho: PR Correct option-10 This is a right Lawled test. p-hat 2 = x2 200 300 10.667 Correct options a Cutical valu d = 0.05 l assumed 211.645 Z critical = 20.05 103 is missing conclusion Reject Ho because the calculard test stahistica es more than the critical z-value if a 20.01 Zoritical = 2ool Conclusim 2.326 @ fail to Reject Ho because the calculated best Stahshics is us than the critical z-value.