As a General Rule,the Normal Distribution Is Used to Approximate

question 106

Multiple Choice

As a general rule,the normal distribution is used to approximate the sampling distribution of the sample proportion only if:

• A) the sample size n is greater than 30.
• B) the population proportion p is close to 0.50.
• C) the underlying population is normal.
• D) np and n(1 - p)are both greater than or equal to 5.

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Definitions:

Population Parameter

A characteristic or measure that describes an aspect of an entire population, such as mean or standard deviation.

Sampling Distribution

A distribution showing the chances of different outcomes for a statistic, which is generated from a significant amount of samples from a certain population.

Sample Size

The number of individuals or observations used in a sample to estimate characteristics of an entire population.

Point Estimate

A single value given as an estimate of a population parameter that is unknown.