Which Statement Regarding the Denominator of the Equation for the Z

Multiple Choice

Which statement regarding the denominator of the equation for the z score and that of the z statistic is true?

A) There is no difference between the denominators of the two equations.In both cases, we divide by the standard error.
B) There is no difference between the denominators of the two equations.In both cases, we divide by the standard deviation.
C) When computing a z score, we divide by the population standard deviation, but when computing a z statistic, we divide by the standard error of the sampling distribution.
D) When computing a z statistic, we divide by the population standard deviation, but when computing a z score, we divide by the standard error of the sampling distribution.