If Three 90% Confidence Intervals for a Population Proportion P

question 43

Multiple Choice

If three 90% confidence intervals for a population proportion p are calculated based on three independent samples selected randomly from the population, then the simultaneous confidence level will be

• A) about 73%
• B) exactly 90%
• C) exactly 81%
• D) exactly 270%
• E) None of the above answers are correct.

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Definitions:

12-Volt Battery

A common type of battery used in vehicles to power the electrical system, typically lead-acid based, providing energy for starting and accessories.

High Voltage

Electrical potential large enough to cause harm or damage, typically above 1,000 volts in the context of electrical safety.

Hybrid Vehicle

A vehicle that uses more than one form of onboard energy to achieve propulsion, typically combining an internal combustion engine with an electric motor.

Battery Starter

A device that uses electrical power from a battery to start the engine, typically by turning the engine's crankshaft to initiate combustion.