ShortStry and Nquiry are two social media apps in which users can post messages in text. The character counts for posts on ShortStry have a population mean of 313 and a standard deviation of 41. The character counts for posts on Nquiry have a population mean of 267 and a standard deviation of 53. For each app, the distribution of the character counts is clearly bell- shaped. Karen's last post on ShortStry was 411 characters. Kala's last post on Nquiry was 212 characters. (a) Find the z-scores of Karen's last post as a post on ShortStry and Kala's last post as a post on Nquiry. Round your answers to two decimal places. z-score of Karen's post: z-score of Kala's post: (b) Relative to its population, which post was longer? Choose the best answer based on the z-scores of the two posts. Karen's post O Kala's post It is unclear which post was longer relative to its population X