P-value=(Round to three decimal places as needed.)What is the conclusion based on the hypothesis test?The P-value isis higher than the cure rate for those given a placebo.▼the significance level of α = 0.05, sob. Test the claim by constructing an appropriate confidence interval.The 90% confidence interval is < (P₁-P₂) <-(Round to three decimal places as needed.)What is the conclusion based on the confidence interval?Because the confidence interval limitsappears that the cure rate isthe null hypothesis. There0, it appears that the two cure rates arefor the oxygen treatment than for the placebo.✔ evidence to support the claim that the cure rate with oxygen treatment▼Because the confidence interval limits include▼values, it In a study of treatments for very painful "cluster" headaches, 153 patients were treated with oxygen and 157 other patients were given a placebo consisting of ordinary air. Among the 153 patients inthe oxygen treatment group, 120 were free from headaches 15 minutes after treatment. Among the 157 patients given the placebo, 20 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.a. 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 forthe hypothesis test?O A. Ho: P1 P2H₁: P₁ = P2O D. Ho: P1 P2H₁: P₁ P2Identify the test statistic.z=0(Round to two decimal places as needed.)OB. Ho: P1 P2H₁: P₁P2O E. Ho: P1H₁: P₁P2P2OC. Ho: P1 P2H₁: P₁P₂OF. Ho: P1H₁: P₁P2P2

There are two independent samples which are oxygen and placebo. We have to test whether the oxygen…

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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A published report of a repeated-measures research study includes the following description of the statistical analysis: “The results show significant different among the treatment conditions, F(2, 26) = 4.87, p < .05.” A)How many treatment conditions were compared in the study? B)How many individuals participated in the study?
The background concentration of a chemical in soil was measured on ten random specimens of soil from an uncontaminated area. The measured concentrations, in mg/kg, are: 1.4, 0.6, 1.2, 1.6, 0.5, 0.7, 0.3, 0.8, 0.2, and 0.9. Soil from a neighboring area will be declared “contaminated” if test specimens contain a chemical concentration higher than the upper 99% confidence limit of the background level. What is the cleanup target concentration?
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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?
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A researcher wants to examine the effect of daily mental exercises on cognitive performance of people in early stages of Alzheimer's disease. She enrolled to her study n = 16 patients diagnosed with the early stage of Alzheimer's disease and all participants conducted daily mental exercises for a month. At the end of the program all enrolled patients took the MMSE test (i.e., Mini-Mental State Examination). The results show that the sample mean on the MMSE test was M = 23.6 with the standard deviation, s = 7. It is known that the MMSE mean in the population of patients with early Alzheimer's disease is µ = 20. Do these data show a significant effect of daily mental exercises on cognitive performance in early stages of Alzheimer's disease?
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