The distribution of the time it takes for different people to solve a certain crossword puzzle is strongly skewed to the right, with a mean of 30 minutes and a standard deviation of 15 N minutes. The distribution of z-scores for those times is r
(a) Normally distributed, with mean 30 and standard deviation 15
(b) Skewed to the right, with mean 30 and standard deviation 15
(c) Normally distributed, with mean 0 and standard deviation 1
(d) Skewed to the right, with mean 0 and standard deviation 1
(e) Skewed to the right, but the mean and standard deviation cannot be determined without more information
Answer: D