thisFI2ZK@In a study of treatments for very painful "cluster" headaches, 150 patients were treated with oxygen and 141 other patients were given a placebo consisting of ordinary air. Among the 150 patients inthe oxygen treatment group, 107 were free from headaches 15 minutes after treatment. Among the 141 patients given the placebo, 28 were free from headaches 15 minutes after treatment. Use a0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below.2a. Test the claim using a hypothesis test.Consider the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients given a placebo. What are the null and alternative hypotheses for thehypothesis test?OA. Ho: P₁ P₂H₁: P₁ P₂View an exampleF2WSD. Ho: P1 P2H₁: P₁ P₂Identify the test statistic.z = 8.80(Round to wo decin places as eeded.)Identify the P-value.P-value=(Round to three decimal places as needed.)XHcommand#3Get more help.80F3EDC$4F4RF%5V9TG^6B1OB. Ho: P₁ P₂H₁: P₁ P₂OE H₂: P₁ SP₂H₁: P1 P2N I'MacBook AirF6YH&7N■F7UJ√₁*8M√ 1,D-IIFAI(9K<OIHDOMore)OLcommandOC. Ho: P₁ P₂H₁: P1 P₂OF. Ho: P₁ = P₂H₁: P₁ P₂F10P>.--:;Clear allIoptionF11{[?1+11ICheck answerF12}1xdeletereturnESshiftdrew

We have given thatn1 = 150 , x1 = 107n2 = 141 , x2 = 28Significance level (α) = 0.05Now,p̂1 = x1/n1…

Answered: In a study of treatments for very…

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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Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 39 of the 44 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 95 of the 112 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below.
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Two professors at a local college developed a new teaching curriculum designed to increase students' grades in math classes. In a typical developmental math course, 53% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 15 students enrolled, 10 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a = 0.05 level of significance? Complete parts (a) through (g). (b) Verify that the normal model may not be used to estimate the P-value. npo (1 - Po) : (Round to one decimal place as needed.) Весause = 3.7 < 10, the normal model may not be used to approximate the P-value. (c) Explain why this is a binomial experiment. There is a fixed number of trials with two mutually exclusive outcomes. The trials are independent and the probability of success is fixed at 0.53 for each trial. (Type an integer or a decimal. Do not round.) (d) Determine the P-value using the binomial probability distribution.…
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You’re interested in knowing if a walking plus strength training exercise program results in a significantly greater increase in maxVo2 as compared to a walking only or a strength training only exercise program. Participants are randomly selected and then randomly assigned to one of three groups— walking plus strength training, walking only, or strength training only. After 6-months of exercise the participants are assessed. Which statistical analyses was used?
Two professors at a local college developed a new teaching curriculum designed to increase students' grades in math classes. In a typical developmental math course, 54% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 15 students enrolled, 12 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a = 0.01 level of significance? Complete parts (a) through (g). (a) State the appropriate null and alternative hypotheses. Ho: (Type integers or decimals. Do not round.) versus H,:
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Two professors at a local college developed a new teaching curriculum designed to increase students' grades in math classes. In a typical developmental math course, 55% of the students complete the course with a letter grade of A, B, or C. In the experimental course, of the 15 students enrolled, 11 completed the course with a letter grade of A, B, or C. Is the experimental course effective at the a = 0.1 level of significance? Complete parts (a) through (g). Is there sufficient evidence to support the research that the experimental course is effective? A. No, reject the null hypothesis because the P-value is less than a. There is insufficient evidence to conclude that the experimental course is effective. B. Yes, reject the null hypothesis because the P-value is less than a. There is sufficient evidence to conclude that the experimental course is effective. CC. No, do not reject the null hypothesis because the P-value is greater than a. There is insufficient evidence to conclude that…

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