A company claims that its new viral vaccine is 90% effective in preventing a contagious viral disease. Suppose that in a clinical trial with 3000 respondents, 2640 did not get infected by this disease. Which is an appropiate decision

A company claims that its new viral vaccine is 90% effective in preventing a contagious viral disease. Suppose that in a clinical trial with 3000 respondents, 2640 did not get infected by this disease. Which is an appropiate decision

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Question

A company claims that its new viral vaccine is 90% effective in preventing a contagious viral
disease. Suppose that in a clinical trial with 3000 respondents, 2640 did not get infected by this
disease.
Which is an appropiate decision?
a)Do not reject Ho
b)Do not reject Ha
c)Reject Ha
d)Reject Ho

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