1. A news article reported that Philippines is the world's top Facebook user with an average daily usage of 4.25 hours. A social worker surveyed 50 teens in her barangay and asked them about their Facebook usage. It was found that the average usage of the selected teenagers is 5.5 hours with standard deviation of 2.4 hours. Is there sufficient evidence that teens in their barangay use Facebook longer? Use a = 0.05. In words, define the random variable X = а. b. Но: Ha:. с. На: d. The level of significance is Determine the test statistic using the data (show solution). е. f. Provide the decision rule of the test. g. Decision: h. Write a clear conclusion using the format: i. sufficient evidence to reject the null hypothesis that at < % level of significance>.

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
1. A news article reported that Philippines is the world's top Facebook user with an average daily
usage of 4.25 hours. A social worker surveyed 50 teens in her barangay and asked them about
their Facebook usage. It was found that the average usage of the selected teenagers is 5.5 hours
with standard deviation of 2.4 hours. Is there sufficient evidence that teens in their barangay
use Facebook longer? Use a = 0.05.
In words, define the random variable X =
b. Но:
Ha:
с. На:
d. The level of significance is
Determine the test statistic using the data (show solution).
f.
Provide the decision rule of the test.
g. Decision:
h. Write a clear conclusion using the format:
i. <There is / There is no> sufficient evidence to reject the null hypothesis that
<insert null hypothesis in words> at <
% level of significance>.
Transcribed Image Text:1. A news article reported that Philippines is the world's top Facebook user with an average daily usage of 4.25 hours. A social worker surveyed 50 teens in her barangay and asked them about their Facebook usage. It was found that the average usage of the selected teenagers is 5.5 hours with standard deviation of 2.4 hours. Is there sufficient evidence that teens in their barangay use Facebook longer? Use a = 0.05. In words, define the random variable X = b. Но: Ha: с. На: d. The level of significance is Determine the test statistic using the data (show solution). f. Provide the decision rule of the test. g. Decision: h. Write a clear conclusion using the format: i. <There is / There is no> sufficient evidence to reject the null hypothesis that <insert null hypothesis in words> at < % level of significance>.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
  • SEE MORE 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