Two Researchers Select a Sample for a Population with a Mean

question 43

Multiple Choice

Two researchers select a sample for a population with a mean of 12.4 and a standard deviation of 9.Researcher A selects a sample of 30 participants.Researcher B selects a sample of 40 participants.Which sample is associated with a smaller standard error?

• A)Researcher A's,because the sample size was smaller.
• B)Researcher B's,because the sample size was smaller.
• C)Researcher A's,because the sample size was larger.
• D)Researcher B's,because the sample size was larger.

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