Albert is interested to understand the of herd immunity concept for Japan's COVID-19 cases. She noted that 95%of adult population in Japan is fully vaccinated by the end of October 2021. She want to compare difference ofCOVID-19 death cases in Japan before Japan achieve herd immunity and after Japan achieve herd immunity. Shecollects the data of death cases in Japan two weeks in the early of October 2021 (to represent before herdimmunity) and two weeks in the end of November 2021 (to represent after herd immunity). Assume the variableis approximately normally distributed. The data are presented as below.Before herd immunityAfter herd immunity121109118761171051325340685545412478746493103688863473748454029a) What test is appropriate to be used in this question? State why.b) Find sample mean and sample standard deviation of the above data.c) Can Albert concluded that the before herd immunity death cases is lower than the after herd immunitydeath cases. Test the claim at a = 0.10.d) Find 98% confidence interval of the difference in means.

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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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