If It Is Important to Analyze Four Subgroups of a Total

question 38

Multiple Choice

If it is important to analyze four subgroups of a total sample: married women over 35, single women over 35, married women under 35, and single women under 35 and each group is expected to make up about 25 percent of the total sample, a sample of 400 will only have 100 in each subgroup, what is the problem with the smaller sample size?

• A) smaller groups lead to larger sampling errors
• B) smaller groups lead to smaller sampling errors
• C) larger total samples are needed for subgroups
• D) none are problems with small sample sizes

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Definitions:

Bowel Sounds

The noises made by the movement of the intestines as they push food through the gastrointestinal tract, typically heard with a stethoscope during a physical exam.

Vesicular Lung Sounds

Breath sounds normally heard over most lung fields, characterized by a soft, rustling quality associated with air moving through smaller airways.

Bronchovesicular Breath Sounds

Normal breath sounds heard over the central chest or back, indicating air moving through the larger airways.

Heart Sound

The sounds produced by the closing of heart valves and the flow of blood through the heart, often assessed with a stethoscope.