A producer of pharmaceutical claims that it is 90% effective in relieving hypersensitivity for a period of 8 hours. In a test of 200 individuals who had hypersensitivity, the medicine provided relief for 160 individuals. a. What should be the good hypotheses for this problem? b. What is the critical region at 1% level? c. What is the t-value/z-score?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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EXERCISE 1.3

A producer of pharmaceutical claims that it is 90% effective in relieving hypersensitivity for a period of 8
hours. In a test of 200 individuals who had hypersensitivity, the medicine provided relief for 160 individuals.
a. What should be the good hypotheses for this problem?
b. What is the critical region at 1% level?
c. What is the t-value/z-score?
Transcribed Image Text:A producer of pharmaceutical claims that it is 90% effective in relieving hypersensitivity for a period of 8 hours. In a test of 200 individuals who had hypersensitivity, the medicine provided relief for 160 individuals. a. What should be the good hypotheses for this problem? b. What is the critical region at 1% level? c. What is the t-value/z-score?
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