In a study of treatments for very painful "cluster" headaches, 158 patients were treated with oxygen and 142 other patients were given a placebo consisting ofordinary air. Among the 158 patients in the oxygen treatment group, 123 were free from headaches 15 minutes after treatment. Among the 142 patients given theplacebo, 29 were free from headaches 15 minutes after treatment. Use a 0.01 significance level to test the claim that the oxygen treatment is effective. Completeparts (a) through (c) below.Identify the P-value.P-value = 0.000(Round to three decimal places as needed.).What is the conclusion based on the hypothesis test?The P-value is less thanrejectthe significance level of α=0.01, sothe null hypothesis. Therethe cure rate with oxygen treatment is higher than the cure rate for those given a placebo.b. Test the claim by constructing an appropriate confidence interval.The 98% confidence interval is 0.452 (P₁-P2) <0.696(Round to three decimal places as needed.)is sufficientevidence to support the claim that

The given significance level is 0.01.

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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