In an effort to reduce energy costs, and major university has installed more efficient lights as well as automatic sensors that turn the lights off when no movement is present in a room. Historically, the cost of lighting an average classroom for one week has been $265. To determine whether that change has significantly reduced cost, the university takes a sample of 50 classrooms. They find that the average cost for one week is $247 with the standard deviation of $60. When testing whether the average energy use has decreased from the past (with a null hypothesis that the use has increased) (using the 5% level of significance), what is the P value?**please round your answer to four decimal places** QUESTION 3In an effort to reduce energy costs, a major university has installed more efficient lights as well as automatic sensors that turn the lights off when no movement is present in a room. Historically, the cost of lighting an average classroom for 1 week has been $265. Todetermine whether the changes have signficantly reduced costs, the university takes a sample of 50 classrooms. They find that the average cost for 1 week is $247 with a standard deviation of $60. When testing whether the average energy use has decreased from thepast (with a null hypothesis that the use has increased) (using the 5% level of significance), what is the p-value? (please round your answer to 4 decimal places)

Answered: Image /qna-images/answer/9833a62d-a649-4f80-9ba3-b04eb0c47c3e.jpg

Answered: lights off when no movement is present…

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

Related questions

Question

In an effort to reduce energy costs, and major university has installed more efficient lights as well as automatic sensors that turn the lights off when no movement is present in a room. Historically, the cost of lighting an average classroom for one week has been $265. To determine whether that change has significantly reduced cost, the university takes a sample of 50 classrooms. They find that the average cost for one week is $247 with the standard deviation of $60. When testing whether the average energy use has decreased from the past (with a null hypothesis that the use has increased) (using the 5% level of significance), what is the P value? **please round your answer to four decimal places**