Which of the Following Is a Fundamental Difference Between the T

Multiple Choice

Which of the following is a fundamental difference between the t statistic and a z-score?​

A) ​The t statistic uses the sample mean in place of the population mean.
B) ​The t statistic uses the sample variance in place of the population variance.
C) ​The t statistic computes the standard error by dividing the standard deviation by n - 1 instead of dividing by n.
D) ​The t statistic is used for large samples only.