A Random Sample of 225 Items from a Population Results

question 17

Multiple Choice

A random sample of 225 items from a population results in 60% possessing a given characteristic.Using this information, the researcher constructs a 99% confidence interval to estimate the population proportion.The resulting confidence interval is _______.

• A)0.54 to 0.66
• B)0.59 to 0.61
• C)0.57 to 0.63
• D)0.52 to 0.68
• E)0.68 to 0.76

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Definitions:

Stratified Random Sampling

A probability sampling method in which the population is first divided into strata and a simple random sample is then taken from each stratum.

Strata

Subsets of a population that are known to be homogeneous with respect to some characteristic, used in stratified sampling.

Frame

A listing of the elements the sample will be selected from.

Infinite Population

A theoretical concept where the size of the population is limitless, affecting statistical sampling methods.