9.1 Q 8 ignore this, just to rememebr what question it is. 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 ofKordinary 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.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 thenull and alternative hypotheses for the hypothesis test?A. Ho P₁ P2H₁ P₁ P2D. Ho P1 P2H₁ P₁ P2Identify the test statisticZ=(Round to two decimal places as needed)B. Ho: P1 P2H₁ P₁ P2E. Ho: P₁² P2H₁: P₁ P2C. Ho: P₁ P2H₁ P₁ P2F Ho: P₁ = P2H1 P1

Given n1=158 n2=142 X1=123 X2=29

Answered: In a study of treatments for very…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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