Answered: n drug can be used to reduce the acid…

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

A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims that more than 95% of patients taking the drug are healed within 8 weeks. In clinical trials, 223 of 231 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim at the α=0.05 level of significance.

1.) what are the null and alternative hypothesises?

2.)Determine the test statistic z0

3.)Determine the critical value

4.)Which option is correct?

Do not reject

the null hypothesis. There

is sufficient

evidence to conclude more than

95%

of patients taking the drug are healed within 8 weeks.

Reject

the null hypothesis. There

is sufficient

evidence to conclude that more than

95%

of patients taking the drug are healed within 8 weeks.

Do not reject

the null hypothesis. There

is insufficient

evidence to conclude that more than

95%

of patients taking the drug are healed within 8 weeks.

Reject

the null hypothesis. There

is insufficient

evidence to conclude that more than

95%

of patients taking the drug are healed within 8 weeks.

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