A Sample of 25 Observations Is Taken from an Infinite

question 123

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 n(1-
• P) 5
• D)approximately normal if np > 30 and n(1-
• P) > 30

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