Many students brag that they have more than 150 friends on a social media platform. For a class project, a group of students asked a random sample of 13 students at their college who used the social media platform about their number of friends and got the data available below. Is there strong evidence that the mean number of friends for the student population at the college who use the social media platform is larger than 150? Use the Inference for a Population Mean web app to complete parts a through d below. Be sure to use the data in this exercise and not the preloaded data when using the web app. Click the icon to view the data about the numbers of friends. Ine proportion of students at the college that use the social media platform D. The mean number of friends for students at the college who use the social media website O E. The number of friends for students at the college who use the social media platform b. State the null and alternative hypotheses. Hoile= 150 Ha: > 150 (Type integers or decimals. Do not round.) c. Find and interpret the test statistic value. t= 0.61 (Round to two decimal places as needed.) What does the test statistic value represent? OA. The test statistic value is the number of standard deviations from the null hypothesis value to the sample mean. OB. The test statistic value is the expected mean of the differences between the sample data and the null hypothesis value. C. The test statistic value is the number of standard errors from the null hypothesis value to the sample mean. OD. The test statistic value is the difference between the sample mean and the null hypothesis value. d. Report and interpret the P-value and state the conclusion in context. Use a significance level of 0.05. The P-value is. (Round to three decimal places as needed.)

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

Question 7, 9.3.33

Many students brag that they have more than 150 friends on a social media platform. For a class project, a group of students asked a random sample of 13 students at their college who used the
social media platform about their number of friends and got the data available below. Is there strong evidence that the mean number of friends for the student population at the college who use the
social media platform is larger than 150? Use the Inference for a Population Mean web app to complete parts a through d below. Be sure to use the data in this exercise and not the preloaded data
when using the web app.
Click the icon to view the data about the numbers of friends.
C. i ne proportion of students at the college that use the social media platform
D. The mean number of friends for students at the college who use the social media website
E. The number of friends for students at the college who use the social media platform
b. State the null and alternative hypotheses.
Ho: μ
150
На: р
150
(Type integers or decimals. Do not round.)
c. Find and interpret the test statistic value.
t = 0.61 (Round to two decimal places as needed.)
What does the test statistic value represent?
=
A. The test statistic value is the number of standard deviations from the null hypothesis value to the sample mean.
B. The test statistic value is the expected mean of the differences between the sample data and the null hypothesis value.
C. The test statistic value is the number of standard errors from the null hypothesis value to the sample mean.
D. The test statistic value is the difference between the sample mean and the null hypothesis value.
d. Report and interpret the P-value and state the conclusion in context. Use a significance level of 0.05.
The P-value is
(Round to three decimal places as needed.)
Transcribed Image Text:Many students brag that they have more than 150 friends on a social media platform. For a class project, a group of students asked a random sample of 13 students at their college who used the social media platform about their number of friends and got the data available below. Is there strong evidence that the mean number of friends for the student population at the college who use the social media platform is larger than 150? Use the Inference for a Population Mean web app to complete parts a through d below. Be sure to use the data in this exercise and not the preloaded data when using the web app. Click the icon to view the data about the numbers of friends. C. i ne proportion of students at the college that use the social media platform D. The mean number of friends for students at the college who use the social media website E. The number of friends for students at the college who use the social media platform b. State the null and alternative hypotheses. Ho: μ 150 На: р 150 (Type integers or decimals. Do not round.) c. Find and interpret the test statistic value. t = 0.61 (Round to two decimal places as needed.) What does the test statistic value represent? = A. The test statistic value is the number of standard deviations from the null hypothesis value to the sample mean. B. The test statistic value is the expected mean of the differences between the sample data and the null hypothesis value. C. The test statistic value is the number of standard errors from the null hypothesis value to the sample mean. D. The test statistic value is the difference between the sample mean and the null hypothesis value. d. Report and interpret the P-value and state the conclusion in context. Use a significance level of 0.05. The P-value is (Round to three decimal places as needed.)
Numbers of Friends
Numbers of Friends
250 255 230 185 250 95 120 20 260 95 160
40
175
I
Transcribed Image Text:Numbers of Friends Numbers of Friends 250 255 230 185 250 95 120 20 260 95 160 40 175 I
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 5 images

Blurred answer
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