A Sample of 25 Observations Is Taken from a Process $\bar { p }$

question 24

Multiple Choice

A sample of 25 observations is taken from a process (an infinite population) . The sampling distribution of $\bar { p }$ is _____.

• A) not normal since n < 30
• B) approximately normal because \(\bar { p }\) 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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