A Value of X May Be Converted to a Score $z = \frac { \bar { X } - \mu } { \sigma \bar { X } }$

Multiple Choice

A value of X may be converted to a score on the standard normal distribution by using the formula.

A) $z = \frac { \bar { X } - \mu } { \sigma \bar { X } }$
B) $z = \frac { \bar { X } - \bar { X } \bar { A } } { \sigma _ { \bar { x } } }$
C) $z = \frac { \bar { X } - \mu } { \sigma }$
D) $z = \frac { \bar { X } - \mu } { \sigma ^ { 2 } }$