In Which Situation May the Sample Proportion Safely Be Assumed

question 15

Multiple Choice

In which situation may the sample proportion safely be assumed to follow a normal distribution?

• A)12 successes in a sample of 72 items
• B)8 successes in a sample of 40 items
• C)6 successes in a sample of 200 items
• D)4 successes in a sample of 500 items

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Definitions:

Confidence Level

The degree of certainty, often expressed as a percentage, that a parameter lies within a specified range.

Sample Size

The number of observations or data points collected in a statistical study, which influences the precision and reliability of the study's outcome.

Confidence Intervals

An array of values, based on statistics from a sample, which is assumed to enclose the value of an unidentified population feature.

Population Mean

The average value of a characteristic in a population, calculated by summing all the data points and dividing by the number of data points.