Which statement regarding the denominator of the equation for the 
z score and that of the 
z statistic is true?
? There is no difference between the denominators of the two equations. In both cases, we divide by the standard error.
? 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.
? 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.
? There is no difference between the denominators of the two equations. In both cases, we divide by the standard deviation.