(a) Find the z-scores of Trey's last post as a post on Word-e and Ryan's last post as a post on Talk2U. Round your answers to two decimal places. z-score of Trey's post: z-score of Ryan's post: (b) Relative to its population, which post was shorter? Choose the best answer based on the 2-scores of the two posts. 251 characters. O Trey's post O Ryan's post O It is unclear which post was shorter relative to its population X

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