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Section 10.2 Homework
8.
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, 210 of 220 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer’s claim at the á=0.1 level of significance.
What are the null and alternative hypotheses?
Find the test statistic,
.
Find the P-value.
Choose the correct conclusion below.
- Reject the null hypothesis. There is sufficient 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.
- 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.
- 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.
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This question is taken from Math 136 – Introduction to Statistics » Summer 2021 » Homework