Pfizer claims that their COVID-19 vaccine is 95% effective. Suppose that in aclinical trial test, 960 out of 1000 subjects have received protection from thevirus. Test the claim using two-tailed test at 0.01 level. (Disregard the continuitycorrection in your solution.)a. State the null and alternative hypotheses.*H p = 0.95, H:: p> 0.95Ha: p = 0.95, H:: p < 0.95O Ha p = 0.95, H: p + 0.95H: p< 0.95, H.: p > 0.95None of the above.b. Calculate the critical region.z<-2.575 or z > 2.575O t<-0.005 or t> 0.0005O z<-0.4801 or z >0.5199O t<-1.645 ort> 1.645c. What is the t-value/z-value?*z = 1.45t = 1.38z< 0.05O z> 0.01d. Conclusion *The vaccine is 95% effective.The vaccine is not 95% effective.O The efficacy of vaccine is greater than 95%.Not enough data to draw conclusion.

From the given information we conduct z test for proprtion.

Answered: clinical trial test, 960 out of 1000…

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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