The Conservative Sample Size Required for a 95 Percent Confidence

question 90

Multiple Choice

The conservative sample size required for a 95 percent confidence interval for π with an error of ± 0.04 is

• A)271
• B)423
• C)385
• D)601

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Definitions:

Loading Effect

The impact on a circuit when a measurement device or an additional component is connected, altering the circuit's original behavior.

Impedance

A measurement of the resistance to the flow of alternating current (AC), encompassing both resistance and reactance.

Ohmmeter

An instrument for measuring electrical resistance, which is a fundamental property that quantifies how strongly a material opposes the flow of electric current.

Ammeter

An instrument used to measure the current in a circuit, usually in amperes.