Researchers selected 894 patients at random among those who take a certain widely-used prescription drug daily. In a clinical trial, 24 out of the 894 patients complained of flulike symptoms. Suppose that it is known tha2.4% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 2.4% of this drug's users experience flulike symptoms as a side effect at the a= 0.01 level ofsignificance?Because npo (1-Po) =satisfied.(Round to one decimal place as needed.)10, the sample size isCD5% of the population size, and the patients in the sampleselected at random, all of the requirements for testing the hypothesis

The question is about hypothesis testing.Given :Population proportion patients complained of flulike…

Answered: Researchers selected 894 patients at…

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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What is the test statistic ?
A recent poll of 1900 randomly selected 18-25-year-olds revealed that 220 currently use marijuana or hashish. According to a publication, 12.6 % of 18-25-year-olds were current users of marijuana or hashish in 1997. Do the data provide sufficient evidence to conclude that the percentage of 18-25-year-olds who currently use marijuana or hashish has changed from the 1997 percentage of 12.6% ? Use α = 0.01 significance level. test statistic z = positive critical score negative critical z score
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Are couples that live together before they get married more likely to end up divorced within five years of marriage compared to couples that live apart before they get married? 217 of the 671 couples from the study who lived together before they got married were divorced within five years of marriage. 132 of the 421 couples from the study who lived apart before they got married were divorced within five years of marriage. What can be concluded at the = 0.10 level of significance? For this study, we should use The null and alternative hypotheses would be: The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The results are statistically insignificant at αα = 0.10, so there is statistically significant evidence to conclude that the divorce rate…
Researchers selected 848 patients at random among those who take a certain widely-used prescription drug daily. In a clinical trial, 18 out of the 848 patients complained of flulike symptoms. Suppose that it is known that 1.6% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.6% of this drug's users experience flulike symptoms as a side effect at the a = 0.01 level of significance? ... 10, the sample size is Because npo (1-Po) = population size, and the patients in the sample requirements for testing the hypothesis (Round to one decimal place as needed.) satisfied. 5% of the selected at random, all of the
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