Word-e and NexText 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 289 and a standard deviation of 45. The character counts for posts on NexText have a population mean of 61 and a standard deviation of 22. For each app, the distribution of the character counts is clearly bell-shaped. Elsa's last post on Word-e was 233 characters. Isabel's last post on NexText was 11 characters. (a) Find the :-scores of Elsa's last post as a post on Word-e and Isabel's last post as a post on NexText. Round your answers to two decimal places. E-score of Elsa's post: I E-score of Isabel'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 Elsa's post O Icabol's nort
Word-e and NexText 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 289 and a standard deviation of 45. The character counts for posts on NexText have a population mean of 61 and a standard deviation of 22. For each app, the distribution of the character counts is clearly bell-shaped. Elsa's last post on Word-e was 233 characters. Isabel's last post on NexText was 11 characters. (a) Find the :-scores of Elsa's last post as a post on Word-e and Isabel's last post as a post on NexText. Round your answers to two decimal places. E-score of Elsa's post: I E-score of Isabel'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 Elsa's post O Icabol's nort
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Word-e and NexText 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
289 and a standard deviation of 45. The character counts for posts on NexText have a population mean of 61 and a standard deviation of 22. For each app, the
distribution of the character counts is clearly bell-shaped.
Elsa's last post on Word-e was 233 characters. Isabel's last post on NexText was 11 characters.
(a) Find the z-scores of Elsa's last post as a post on Word-e and Isabel's last post as a post on NexText. Round your answers
to two decimal places.
E-score of Elsa's post:|
E-score of Isabel's post:||
(b) Relative to its population, which post was shorter?
Choose the best answer based on the -scores of the two posts.
O Elsa's post
O Isabel's post
O It is unclear which post was shorter relative to its population
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