不In a dinical trial, 23 out of 862 patients taking a prescription drug daily complained of Bulke symptoms Suppose that it is known that 2.3% of patients taking competing drugs complain of fake symptoms is there sufficat breeto conclude that more than 2.3% of this drug's users experience fulike symptoms as a side effect at the a-005 level of significance?Because(1-P)-10, the sample size is5% of the population size, and the sample(Round to one decimal place as needed)the requirements for testing the hypothessatisfied

Given: x = 23n = 892 Solution: Sample Proportion p=nx=89223=0.0258 Null and Alternative…

Answered: 不 In a dinical trial, 23 out of 862…

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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220
13. Are Seat Belts Effective? A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2823 occupants not wearing seat belts, 31 were killed. Among 7765 occupants wearing seat belts, 16 were killed (based on data from "Who Wants Airbags?" by Meyer and Finney, Chance, Vol. 18, No. 2). We want to use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. a. Test the claim using a hypothesis test.
It was claimed recently that more than 55% of high school students in the United States use computers for educational purposes. We wish to examine this claim. We choose a random sample of 225 U.S. high school students and find that 140 of these students use computers for educational purposes. Based on this, can we conclude, at the 0.05 level of significance, that more than 55% of high school students in the United States use computers for educational purposes? In your answers, denote the proportion of all U.S. high school students who happen to use computers for educational purposes by p. State the null hypothesis H0 and the alternative hypothesis H1 Find the z-test value find the critical value Can we conclude that more than 55% of high school students in the United States use computers for educational purposes? Yes or No?
What is the sample size (n=) and what consequences will the sample size have on my analysis and reporting of results?
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
In a clinical trial, 16 out of 857 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 1.5% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 1.5% of this drug's users experience flulike symptoms as a side effect at the x = 0.05 level of significance? Because npo (1-Po) = 10, the sample size is 5% of the population size, and the sample ✓the requirements for testing the hypothesis ✓ satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: (Type integers or decimals. Do not round.) Find the test statistic, Zo. Zo = Find the P-value. P-value = (Round to three decimal places as needed.) Choose the correct conclusion below. A. Since P-value > α, reject the null hypothesis and conclude that there is not sufficient evidence that more than 1.5% of the users experience flulike symptoms. B. Since P-value α, do not reject the null…
In a program designed to help patients stop smoking, 198 patients were given sustained care, and 82.8% of them were no longer smoking after one month(based on data from “ Sustained Care Intervention and Postdischarge Smoking Cessation Among Hospitalized Adults,” by Rigotti et al., Journal of American Association , Vol. 312, N0.7). Use a significance level of ? = 0.01 ?? ???? ?h? ????? ?h?? 80% ?? ???????? ???? ??????? ?h?? ?????? ????????? ?are State the null and alternate hypotheses (write it mathematically) and write your claim. Find the standardized test statistic. Identify /separate the Rejection Region (Critical Region) from the Fail to Reject Region using the critical values. j. Find the p-value and interpret its meaning. Decide whether to reject or fail to reject the null using the p-value approach. l. Make an interpretation of your decision in the context of the claim. Does sustain care appear to be effective. m. What is Type 2 error? Explain its consequence in the context…
In a clinical trial, 25 out of 852 patients taking a prescription drug daily complained of flulike symptoms. Suppose that it is known that 2.4% 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 = 0.05 level of significance? Because npo (1- Po) = 10, the sample size is 5% of the population size, and the sample the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho: versus H1: (Type integers or decimals. Do not round.)

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