Question

A set of data items is normally distributed with a mean of 60 and a standard deviation of 9. Convert 60 to a z-score. Round your answer to the nearest hundredth as needed.

Answer 1

please help?

Answer 2

\[\large z=\frac{ x-\mu }{ \sigma }\] where \[\large x=60, \mu=60, \sigma = 9\]

Answer 3

so 60-60 divided by 9?

Answer 4

that's zero?

Answer 5

yes. any score identical to the mean has a z-score of zero. any score lower than the mean has a negative z-score, and positive z-score for scores higher than the mean

Answer 6

so the z score is zero?

Answer 7

Thank you for your explanation! :)

Answer 8

YW.