0/2.7 A random sample of n = 755 US cell phone users age 18 and older in May 2011 found that the average number of text messages sent or received per day is 41.5 messages, with standard error about 6.1. 1Smith, A., "Americans and Text Messaging." Pew Research Center, http://www.pewinternet.org/Reports/2011/Cell-Phone-Texting- 2011/Main-Report/How-Americans-Use-Text-Messaging.aspx, accessed September 19, 2011. Your answer is incorrect. (a) Use the information from the sample to give the best estimate of the population parameter. I = eTextbook and Media Hint - Your answer is incorrect. (b) Find a 95 % confidence interval for the mean number of text messages. to The 95 % confidence interval is NO 70 F Sunny

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
13
0/2.7E
Arandom sample of n =755 US cell phone users age 18 and older in May 2011 found that the average number of text messages sent
orreceived per day is 41.5 messages, with standard error about 6.1.
1.
Smith, A, "Americans and Text Messaging." Pew Research Center, http://www.pewinternet.org/Reports/2011/Cell-Phone-Texting-
2011/Main-Report/How-Americans-Use-Text-Messaging.aspx, accessed September 19, 2011.
Z .
Your answeris incorrect.
(a) Use the information from the sample to give the best estimate of the population parameter.
e Textbook and Media
Hint
Your answer is incorrect.
(b) Find a 95% confidence interval for the mean number of text messages.
to
i |
The 95 % confidence interval is
O 70°F Sunny 0
ch
宜
Transcribed Image Text:13 0/2.7E Arandom sample of n =755 US cell phone users age 18 and older in May 2011 found that the average number of text messages sent orreceived per day is 41.5 messages, with standard error about 6.1. 1. Smith, A, "Americans and Text Messaging." Pew Research Center, http://www.pewinternet.org/Reports/2011/Cell-Phone-Texting- 2011/Main-Report/How-Americans-Use-Text-Messaging.aspx, accessed September 19, 2011. Z . Your answeris incorrect. (a) Use the information from the sample to give the best estimate of the population parameter. e Textbook and Media Hint Your answer is incorrect. (b) Find a 95% confidence interval for the mean number of text messages. to i | The 95 % confidence interval is O 70°F Sunny 0 ch 宜
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman