You Plan to Draw a Sample of 1,000 from the Population

question 14

Multiple Choice

You plan to draw a sample of 1,000 from the population of a large state in order to estimate the average value of individual life insurance coverage. A list of all state residents and their incomes is available from the state revenue department. Which sampling design should produce the smallest margin of error?

• A) A simple random sample that uses a computer program to generate random numbers
• B) A stratified random sample that uses income categories as strata
• C) A multistage cluster sample that uses counties as clusters
• D) None of the above

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Definitions:

LDL Molecules

Low-density lipoprotein molecules; a type of lipoprotein responsible for transporting cholesterol to cells, often associated with an increased risk of heart disease.

Serum Cholesterol

The total amount of cholesterol in the serum part of the blood, considered an important indicator of heart disease risk.

Dietary Intake

The amount of food and drink consumed by an individual or group.

Thoracic Duct

Largest lymph vessel in the body, beginning at the cisterna chyli and emptying into the left subclavian vein; drains the left side of the head and neck, the left-upper thorax, the left-upper limb, and the inferior half of the body.