A researcher was studying how much electricity (in kilowatt hours) people in Spain and Germany used in their homes last year. The researcher took a random sample of people from each country to test if the average electricity usage was significantly different. Here is a summary of their results: Electricity usage Country Mean StDev SE mean Spain 100 1780 415 41.5 Germany 100 1690 405 40.5 95% CI for us - µG: 90 + 114.4 The researcher wants to use these results to test Ho: us = HG versus H: Hs # µG. Assume that all conditions for inference have been met. Based on the interval, what do we know about the corresponding P-value and conclusion at the a = 0.05 level of significance? The P-value is less than a=0.05, and they should conclude that there is a difference between the means. The P-value is less than a=0.05, and they cannot conclude that there is a difference between the means. The P-value is greater than a=0.05, O and they cannot conclude that there is a difference between the means. The P-value is greater than a=0.05, and they should conclude that there is a difference between the means.

A researcher was studying how much electricity (in kilowatt hours) people in Spain and Germany used in their homes last year. The researcher took a random sample of people from each country to test if the average electricity usage was significantly different. Here is a summary of their results: Electricity usage Country Mean StDev SE mean Spain 100 1780 415 41.5 Germany 100 1690 405 40.5 95% CI for us - µG: 90 + 114.4 The researcher wants to use these results to test Ho: us = HG versus H: Hs # µG. Assume that all conditions for inference have been met. Based on the interval, what do we know about the corresponding P-value and conclusion at the a = 0.05 level of significance? The P-value is less than a=0.05, and they should conclude that there is a difference between the means. The P-value is less than a=0.05, and they cannot conclude that there is a difference between the means. The P-value is greater than a=0.05, O and they cannot conclude that there is a difference between the means. The P-value is greater than a=0.05, and they should conclude that there is a difference between the means.

Name: A researcher was studying how much electricity (in kilowatt hours) pe
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Description: A researcher was studying how much electricity (in kilowatt hours) people in Spain and Germany used intheir homes last year. The researcher took a random sample of people from each country to test if theaverage electricity usage was significantly di

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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