Currently patrons at the library speak at an average of 60 decibels. Will this average dectine after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 43 people speaking at the library. Their average decibel level was 55.2 and their standard deviation was 13. What can be concluded at the the a- 0.01 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 H1: ? vSelect an answer v C. The test statistic ? v (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
Currently patrons at the library speak at an average of 60 decibels. Will this average dectine after the installation of a new computer plug in station? After the plug in station was built, the librarian randomly recorded 43 people speaking at the library. Their average decibel level was 55.2 and their standard deviation was 13. What can be concluded at the the a- 0.01 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 H1: ? vSelect an answer v C. The test statistic ? v (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
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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Currently patrons at the library speak at an average of 60 decibels. Will this average dectine after the
installation of a new computer plug in station? After the plug in station was built, the librarian randomly
recorded 43 people speaking at the library. Their average decibel level was 55.2 and their standard
deviation was 13. What can be concluded at the the a = 0.01 level of significance?
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Syllabus
Outcomes
a. For this study, we should use Select an answer
b. The null and alternative hypotheses would be:
Modules
Ho: ? v Select an answer v
Conferences
Collaborations
H: ? vSelect an answer v
Google Drive
C. The test statistic ? v-
(please show your answer to 3 decimal places.)
Office 365
d. The p-value =
e. The p-value is ? va
f. Based on this, we should Select an answer v the null hypothesis.
g. Thus, the final conclusion is that ...
(Please show your answer to 4 decimal places.)
Student Course
Evaluations
O The data suggest that the population mean decibal level has not significantly decreased from
60 at a = 0.01, so there is statistically insignificant evidence to conclude that the population
mean decibel level at the library has decreased since the plug in station was built.
O The data suggest the populaton mean has significantly decreased from 60 at a = 0.01, so
there is statistically significant evidence to conclude that the population mean decibel level at
the library has decreased since the plug in station was built.
O The data suggest the population mean has not significantly decreased from 60 at a = 0.01,
so there is statistically significant evidence to conclude that the population mean decibel level
at the library has not decreased since the plug in station was built.
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