A major nationwide depression occurred in 1830

Irene is a representative of Baroque Minerals, Inc., a publicly traded mining company. Irene states publicly that Baroque has discovered a significant deposit of a rare mineral in China, which promises to substantially increase the long-term revenue of the company. Unbeknownst to Irene, an unexpected earthquake that same day destroys the mine in China and blocks access to the rare mineral for years to come. The company's stock drops as a result. Baroque Minerals will likely be:

a. liable under SEC Rule 10b-5. b. not liable under SEC Rule 10b-5, because Irene did not make a material misrepresentation. c. not liable under SEC Rule 10b-5, because Irene did not have a wrongful state of mind. d. not liable under SEC Rule 10b-5, because Irene because of the natural exigency defense to such claims.

The critical value for a one-tailed z-test, given a significance level of 0.05, would be ________

A) either -1.96 or 1.96 B) either -4.0 or 4.0 C) either -1.25 or 1.25 D) either -1.71 or 1.71 E) either -1.645 or 1.645