A Distribution of Raw Scores Is Positively Skewed

Multiple Choice

A distribution of raw scores is positively skewed. You want to transform it so that it is normally distributed. Your friend, who fancies herself a statistics whiz, advises you to transform the raw scores to z scores; that the z scores will be normally distributed. You should _________.

A) ignore the advice because your friend flunked her last statistics test
B) ignore the advice because z distributions have the same shape as the raw scores.
C) take the advice because z distributions are always normally distributed
D) take the advice because z distributions are usually normally distributed