A sample mean is computed from a population with a variance of 2.45. The sample size is
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A sample mean is computed from a population with a variance of 2.45. The sample size is 40. The standard error of the sample mean is closest to:
A. 0.039.
B. 0.247.
C. 0.387.
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B is correct Taking the square root of the known po...View the full answer
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