Because the Sampling Distribution of Sample Means Is Normally Distributed,we $z=\frac{M-\mu_{M}}{\sigma_{M}}$

Multiple Choice

Because the sampling distribution of sample means is normally distributed,we can use the z transformation formula to find probabilities.Which of the following gives the appropriate notation for this formula?

A) $z=\frac{M-\mu_{M}}{\sigma_{M}}$
B) $Z=\frac{M-\mu}{\sigma_{M}}$
C) $z=\frac{M-\mu}{\frac{\sigma}{\sqrt{n}}}$
D) all of these