Determine if a one-tailed or two-tailed test is suitable in each of the following cases, and whether the test is left-tailed or right-tailed (if one-tailed). Sketch a graph. Include the null and alternative hypotheses as well.James thinks that the average income of elderly women is lower than the average income of elderly men. According to the latest data, the average income of elderly men is RM3000.Reading scores for a group of third graders enrolled in an accelerated reading program are predicted to be higher than the scores for non-enrolled third graders.Steve believes that the average COVID-19 cases among the unvaccinated people in bangkok is higher than the average COVID-19 cases among the fully vaccinated people in bangkok .Kate is interested to find out if the average COVID-19 cases in Sathon is different from the average cases in bangkok. According to the latest data, the average cases in bangkok on 9 December 2021 is 236.

Answered: Determine if a one-tailed or two-tailed…

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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Question

Determine if a one-tailed or two-tailed test is suitable in each of the following cases, and whether the test is left-tailed or right-tailed (if one-tailed). Sketch a graph. Include the null and alternative hypotheses as well.

James thinks that the average income of elderly women is lower than the average income of elderly men. According to the latest data, the average income of elderly men is RM3000.
Reading scores for a group of third graders enrolled in an accelerated reading program are predicted to be higher than the scores for non-enrolled third graders.
Steve believes that the average COVID-19 cases among the unvaccinated people in bangkok is higher than the average COVID-19 cases among the fully vaccinated people in bangkok .
Kate is interested to find out if the average COVID-19 cases in Sathon is different from the average cases in bangkok. According to the latest data, the average cases in bangkok on 9 December 2021 is 236.