A Simple Random Sample of 144 Observations Was Taken from a Large

question 96

Multiple Choice

A simple random sample of 144 observations was taken from a large population.The sample mean and the standard deviation were determined to be 1234 and 120 respectively.The standard error of the mean is

• A) 1234±120.
• B) 120.
• C) 1440.
• D) 10.