In 2005, 13,000 Internet Users Were Surveyed and Asked About

question 131

Multiple Choice

In 2005, 13,000 Internet users were surveyed and asked about their willingness to pay fees for access to websites. Of these, 2,938 were definitely not willing to pay such fees. How large a sample is necessary to estimate the proportion of interest to within 2 percent in a 95 percent confidence interval?

• A) 18
• B) 307
• C) 1680
• D) 2000
• E) 2965

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Definitions:

Alzheimer's Disease

A progressive neurodegenerative disorder characterized by memory loss, cognitive decline, and personality changes.

Cerebral Hemorrhages

Bleeding within the brain, caused by a ruptured blood vessel, leading to damage and potentially life-threatening conditions.

Neurofibrillary Tangles

Aggregates of hyperphosphorylated tau protein that are most commonly known as a marker of Alzheimer's disease.

Neuritic Plaques

Accumulations of beta-amyloid protein and degenerating neuronal material found in the brains of patients with Alzheimer's disease.