A Sample of 25 Observations Is Taken from an Infinite

question 7

Multiple Choice

A sample of 25 observations is taken from an infinite population. The sampling distribution of is

• A) not normal since n < 30
• B) approximately normal because is always normally distributed
• C) approximately normal if np ≥ 5 and n1-P) ≥ 5
• D) approximately normal if np > 30 and n1-P) > 30

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