A Sample of 25 Observations Is Taken to Estimate a Population

question 4

Multiple Choice

A sample of 25 observations is taken to estimate a population proportion π.The sampling distribution of sample proportion p is:

• A)not normal since n < 30.
• B)approximately normal because Is always normally distributed.
• C)approximately normal if np ≥ 5 and n(1 - p)≥ 5.
• D)approximately normal if p approaches 0.50.

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Definitions:

Too Narrow

A term describing a definition or concept that is overly restricted in scope or focus.

Obscure

Not discovered or known about; uncertain and not clear or easily understood.

Vague

Vague describes something that is unclear, indistinct, or not precisely defined, often leading to ambiguity or misunderstanding.

Differentia

A characteristic that distinguishes a thing or a concept from others within the same group or category.