Proportional Stratified Sampling Occurs ______

question 38

Multiple Choice

Proportional stratified sampling occurs ______.

• A) as a non-probability random sampling process
• B) when the identified subgroups in the sample are represented in the exact same proportion in which they exist in the population
• C) when the representations of subgroups in the sample are equivalent to one another, as opposed to reflecting the proportions in the population at large
• D) when other techniques are too time-consuming

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Definitions:

Mean

The arithmetic average of a dataset, found by adding all the numbers in the set and dividing by the count of numbers.

Standard Error

A statistical measure that describes the accuracy with which a sample distribution represents a population using the standard deviation.

Mean

The mean of a series of numbers, determined by dividing their total sum by the quantity of numbers in the series.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the true population parameter with a given level of confidence.