Exhibit 8-5

question 3

Multiple Choice

Exhibit 8-5.A sample of 2,007 American adults was asked how they viewed China,with 17% of respondents indicating "unfriendly" and 6% of respondents indicating "an enemy" (Gallup,Nov.30 - Dec.18,2011) . Refer to Exhibit 8-5.Construct a 99% confidence interval of the proportion of American adults who view China as "an enemy."

• A)[0.0463,0.0737]
• B)[0.0476,0.0724]
• C)[0.0512,0.0688]
• D)[0.0597,0.0603]

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Definitions:

Oxygen

A chemical element with the symbol O, necessary for the respiration of most living organisms and for combustion processes.

Carbon Dioxide

A colorless, odorless gas produced by burning carbon and organic compounds and by respiration, absorbed by plants in photosynthesis.

Double-Blind Study

A research method in which both the subjects and the researchers are unaware of which group (test or control) the subjects belong to, to prevent bias.

Experimental

Pertaining to a methodical procedure carried out with the goal of verifying, falsifying, or establishing the validity of a hypothesis.