A Population Proportion Is to Be Estimated

question 45

Multiple Choice

A population proportion is to be estimated. Estimate the minimum sample size needed to achieve the specified margin of error with a 95% degree of confidence.
-A researcher wishes to estimate the proportion of children in a certain neighborhood who are living with only one parent. She wishes to achieve a margin of error of E = 0.021. What is the minimum sample size needed?

• A)1134
• B)48
• C)4536
• D)2268

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Definitions:

Four-figure Accuracy

A level of precision in numerical representation where only the first four digits are considered significant.

Percentage

A number expressed as a fraction of 100, used to denote the ratio or proportion of a part relative to the whole.

Sudden Infant Death Syndrome

Sudden Infant Death Syndrome (SIDS) is the sudden and unexplained death of an apparently healthy infant, often during sleep, and without a clear cause even after a thorough investigation.

Babies

young infants, often referring to those from birth to 12 months, characterized by rapid physical and cognitive development.