Question

A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p, is less than 2 in every ten thousand. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. SELECT ALL APPLICABLE CHO A) There is not sufficient evidence to support the claim that the true proportion is greater than 2 i ten thousand. B) There is not sufficient evidence to support the claim that the true proportion is less than 2 in te thousand C) There is sufficient evidence to support the claim that the true proportion is greater than 2 in tei thousand. D) There is sufficient evidence to support the claim that the true proportion is less than 2 in ten thousand. E) None of thes Assume that the data has a normal distributiorn and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. α 0.05 for a two-tailed test. SELECT ALL APPLICABLE CHO +1.645 士1.764 C) 1.96 士2.575 E) None of thes 27 A manufacturer considers his production process to be out of control when defects exceed 3 percent. In a random sample of 85 items, the defect rate is 5.9 percent but the manager claims that this is only a sample fluctuation and production is not really out of control. At the 0.01 level of significance, test the manager's claim. (there are three correct choices in this question) SELECT ALL APPLICABLE CHO A) There is enough evidence to support the Claim B) Ho p.03 (claim) H P> .03 C) There is enough evidence to reject the Ho D) There is enough evidence to reject the Claim E) Not enough evidence to reject the Ho F) Not enough evidence to reject the Claim G) H) There is enough evidence to support the Ho Ho : P2.03 (claim)D None of these H P< .03

Answer 1

.2 +20.05 120.025 .一士1.96 0,651-023- 156#3 0o3 0.3 35 vn