Verizon Wireless Would Like to Estimate the Proportion of Households

question 45

Multiple Choice

Verizon Wireless would like to estimate the proportion of households that use cell phones for their phone service without a land line. A random sample of 150 households was selected and 48 relied strictly on cell phones for their service. The 95% confidence interval for the proportion based on this sample is ------- .

• A)(0.257, 0.383)
• B)(0.185, 0.456)
• C)(0.223, 0.417)
• D)(0.165, 0.475)

Explain the workings of the endocrine system and the hormones it secretes.

Understand the procedures and purposes of different brain studies and imaging techniques.

Grasp the concepts of plasticity and neurogenesis in the brain.

Evaluate the role of heredity in shaping human personality through family studies, twin studies, and adoption studies.

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Definitions:

Price Decrease

refers to a reduction in the cost of goods or services in the market.

Consumer

An individual or group that purchases goods or services for personal use, not for manufacture or resale.

Income

Money received, typically on a regular basis, for work or through investments.

Marginal Rate

A term that may refer to the rate at which one variable changes as another variable changes marginally, often used in the context of taxes, substitution, or transformation.