The 95 Confidence Interval for a Population Proportion Based on a a Sample

question 102

Multiple Choice

The .95 confidence interval for a population proportion based on a sample of n cases ranged from .40 to .56.If the sample proportion was unchanged, but the sample size was increased to 4n, the .95 confidence interval would be about

• A) .32 to .64.
• B) .36 to .60.
• C) .44 to .52.
• D) .46 to .50.

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Definitions:

Kinetic Energy

The energy that an object possesses due to its motion.

Facilitated Diffusion

Passive transport mechanism in which a solute follows its concentration gradient across a membrane by moving through a transport protein.

Concentration Gradient

A variation in the concentration of a substance across a distance.

Glucose Transporter

Proteins located in cell membranes that assist in the transport of glucose molecules into and out of cells, facilitating the use of glucose for energy.