Question

1) A scientist has a theory that 34% of geese in his area do not fly south for the winter. He tags 65 random geese in the summer and finds that 40% of them do fly south. If α = .05, is the scientist's belief warranted?

a) Yes, because the test value –4.43 is in the critical region. b)Yes, because the test value 4.87 is in the critical region. c)No, because the test value 4.43 is in the critical region.

d) No, because the test value –4.87 is in the noncritical region.

2) Sam Ying, a career counselor, claims the average number of years of schooling for an engineer is 15.8 years. A sample of 16 engineers had a mean of 15 years and a standard deviation of 1.5 years. The test value would be –2.68. True or False

Answer 1