An Infinite Population Has a Mean of 40 and a Standard

question 57

Multiple Choice

An infinite population has a mean of 40 and a standard deviation of 15.A sample of size 100 is taken at random from this population.The standard error of the sample mean equals:

• A) 15
• B) 15/\(\surd\)100
• C) 15/100
• D) None of these choices.

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