Which would be the appropriate way to test differences in proportions for more than two samples?
A) t-test if variance is unknown
B) z-test
C) paired t-test
D) F-test for equality of variances
E) cross-tabulation procedure to conduct a chi-square test
E
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Alice and Bart enter into a contract for the sale of Canyon Ranch. To be enforceable, this contract must be
A. substantiated by reliable, external evidence. B. signed in a sufficient manner by both parties. C. in writing or evidenced by a written memorandum. D. all of the choices.
Which one of the following is generally the most important factor that affects the success of downward communication?
A. Sender's selection of the appropriate communication medium B. Position occupied by the sender C. Location of the communication encounter or message receipt D. Listening skill level of the receiver
Modern concerns of project managers include all of the following except?
a. Risk assessment b. Project security c. Elimination of need for projects d. Development of contingency plans
The argument for protectionism is that it
A. inhibits the development of domestic industries. B. encourages economic reliance on foreign countries. C. creates opportunities for the outsourcing of domestic jobs. D. creates a more favorable environment for a global economy. E. protects a nation's political security.