A Confidence Statement Based on a Probability Sample Says, "One

question 2

Multiple Choice

A confidence statement based on a probability sample says, "One can be 95 percent confident that between 72 percent and 78 percent of all adult Americans believe that the country needs a national health-care system." The phrase "95 percent confident" means that:

• A) if one took many samples, about 95 percent of the resulting intervals would contain the true value.
• B) the sampling frame lists 95 percent of all American adults.
• C) 95 percent of the sample agreed that Americans need a national health-care system.
• D) the margin of error covers 95 percent of all responses in the population.

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Company Policies

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Conceptual Information

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