For a Given Level of Precision and Confidence Level, a Researcher

question 30

Multiple Choice

For a given level of precision and confidence level, a researcher determines that he needs a sample size of 400. The study found that the proportion of people who smoke is 30 percent. For the same level of precision and confidence, he would need the same sample size if the proportion of those who smoke were to change to:

• A) 40 percent.
• B) 50 percent.
• C) 60 percent.
• D) 70 percent.
• E) 100 percent.

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Definitions:

Family Norms

Established expectations and behaviors considered typical or acceptable within a family unit.

Family Life Cycle

A concept in family dynamics that describes the progression of stages a family goes through from formation to dissolution.

Indifference

A lack of interest, concern, or sympathy towards situations or matters.

Informal Roles

Unofficial or unstated functions performed by individuals within social, family, or organizational contexts.