Is It Necessary to Correct for Error When Calculating the Standard

Multiple Choice

Is it necessary to correct for error when calculating the standard error for a t test? Explain your answer.

A) Yes; we are estimating the standard deviation of the population.
B) Yes; we are estimating both the mean and standard deviation of the population.
C) No; we already corrected the standard deviation and are now reflecting the size of the sample.
D) No; we are estimating both the mean and standard deviation of the population.