Teenagers' use of emoticons in school writing. Refer to the Pew Internet and American Life Project (Apr. 2008) sur- vey of the writing habits of U.S. teenagers, Exercise 7.69 (p. 343). Recall that in a random sample of 700 teenag- ers, 448 admitted to using at least one informal element in school writing assignments. [Note: Emoticons, such as using the symbol “:)" to represent a smile, and abbrevia- tions, such as writing "LOL" for "laughing out loud," are considered informal elements.] Is there evidence to indi- cate that less than 65% of all U.S. teenagers have used at least one informal element in school writing assignments? Test the relevant hypotheses using a = .05.

Teenagers' use of emoticons in school writing. Refer to the Pew Internet and American Life Project (Apr. 2008) sur- vey of the writing habits of U.S. teenagers, Exercise 7.69 (p. 343). Recall that in a random sample of 700 teenag- ers, 448 admitted to using at least one informal element in school writing assignments. [Note: Emoticons, such as using the symbol “:)" to represent a smile, and abbrevia- tions, such as writing "LOL" for "laughing out loud," are considered informal elements.] Is there evidence to indi- cate that less than 65% of all U.S. teenagers have used at least one informal element in school writing assignments? Test the relevant hypotheses using a = .05.

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Description: 8.84 Teenagers' use of emoticons in school writing. Refer to thePew Internet and American Life Project (Apr. 2008) sur-vey of the writing habits of U.S. teenagers, Exercise 7.69(p. 343). Recall that in a random sample of 700 teenag-ers, 448 admitted

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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