_________ is a statement of statistical sampling precision.

In assigning the powers of government, the Constitution

a. identifies the powers the states and national government share. b. lists the powers of the national government but does not address the powers of the states. c. lists the powers given to the national government and the powers denied the states and leaves all other powers to the states. d. specifically identifies all of the powers of the national and state governments. e. enumerates national, state, and local government powers specifically, including all powers that each level of government may not exercise

The double-blind control procedure involves

A) having both the experimenter and participants blind to the assignment of each participant. B) having all participants blind to both the hypotheses and the assignment. C) having the experimenter's assistant and the experimenter both blind to the hypotheses. D) None of the above