Word-e and Talk20 are two social media apps in which users can post messages in text. The character counts for posts on Word-e have a population mean of 65 and a standard deviation of 27. The character counts for posts on Talk20 have a population mean of 324 and a standard deviation of 33. For each app, the distribution of the character counts is clearly skewed (not approximately symmetric). Lena's last post on Word-e was 143 characters. Yoko's last post on Talk2U was 395 characters. (a) Find the z-scores of Lena's last post as a post on Word-e and Yoko's last post as a post on Talk2U. Round your answers to two decimal places. z-score of Lena's post: z-score of Yoko's post: (b) Relative to its population, which post was shorter? Choose the best answer based on the z-scores of the two posts. O Lena's post O Yoko's post O It is unclear which post was shorter relative to population

MATLAB: An Introduction with Applications
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Please answer Part A
Word-e and Talk2U are two social media apps in which users can post messages in text. The character counts for posts on Word-e have a population mean of 65
and a standard deviațion of 27. The character counts for posts on Talk2U have a population mean of 324 and a standard deviation of 33. For each app, the
distribution of the character counts is clearly skewed (not approximately symmetric).
Lena's last post on Word-e was 143 characters. Yoko's last post on Talk2U was 395 characters.
(a) Find the z-scores of Lena's last post as a post on Word-e and Yoko's last post as a post on Talk2U. Round your answers
to two decimal places.
z-score of Lena's post:
z-score of Yoko's post:
(b) Relative to its population, which post was shorter?
Choose the best answer based on the z-scores of the two posts.
O Lena's post
O Yoko's post
O It is unclear which post was shorter relative to its population
Transcribed Image Text:Word-e and Talk2U are two social media apps in which users can post messages in text. The character counts for posts on Word-e have a population mean of 65 and a standard deviațion of 27. The character counts for posts on Talk2U have a population mean of 324 and a standard deviation of 33. For each app, the distribution of the character counts is clearly skewed (not approximately symmetric). Lena's last post on Word-e was 143 characters. Yoko's last post on Talk2U was 395 characters. (a) Find the z-scores of Lena's last post as a post on Word-e and Yoko's last post as a post on Talk2U. Round your answers to two decimal places. z-score of Lena's post: z-score of Yoko's post: (b) Relative to its population, which post was shorter? Choose the best answer based on the z-scores of the two posts. O Lena's post O Yoko's post O It is unclear which post was shorter relative to its population
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