Homework Help is Here – Start Your Trial Now!
Math
Statistics
Currently patrons at the library speak at an average of 67 decibels. Will this average increase after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 47 people speaking at the library. Their average decibel level was 72.1 and their standard deviation was 11. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: [? Select an answer v H: ?v Select an answer c. The test statistic ? v (please show your answer to 3 decimal places.)

Currently patrons at the library speak at an average of 67 decibels. Will this average increase after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 47 people speaking at the library. Their average decibel level was 72.1 and their standard deviation was 11. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: [? Select an answer v H: ?v Select an answer c. The test statistic ? v (please show your answer to 3 decimal places.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Topic Video
Question
Currently patrons at the library speak at an average of 67 decibels. Will this average increase after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 47 people speaking at the library. Their average decibel level was 72.1 and their standard deviation was 11. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use | Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer H: ?v|Select an answer v c. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value (Please show your answer to 4 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population mean has not significantly increased from 67 at a = 0.05, so there is statistically significant evidence to conclude that the population mean decibel level at the library has not increased since the plug in station was built. OThe data suggest the populaton mean has significantly increased from 67 at a = 0.05, so there is statistically significant evidence to conclude that the population mean decibel level at the library has increased since the plug in station was built. OThe data suggest that the population mean decibal level has not significantly increased from 67 at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean decibel level at the library has increased since the plug in station was built. Hint: N rch %3D %3D
Transcribed Image Text:Currently patrons at the library speak at an average of 67 decibels. Will this average increase after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 47 people speaking at the library. Their average decibel level was 72.1 and their standard deviation was 11. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use | Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer H: ?v|Select an answer v c. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value (Please show your answer to 4 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population mean has not significantly increased from 67 at a = 0.05, so there is statistically significant evidence to conclude that the population mean decibel level at the library has not increased since the plug in station was built. OThe data suggest the populaton mean has significantly increased from 67 at a = 0.05, so there is statistically significant evidence to conclude that the population mean decibel level at the library has increased since the plug in station was built. OThe data suggest that the population mean decibal level has not significantly increased from 67 at a = 0.05, so there is statistically insignificant evidence to conclude that the population mean decibel level at the library has increased since the plug in station was built. Hint: N rch %3D %3D
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Research Design Formulation
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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
SEE MORE TEXTBOOKS