In a study of treatments for very painful "cluster" headaches, 156 patients were treated with oxygen and 145 other patients were given a placebo consisting of ordinary air. Among the 15 patients in the oxygen treatment group, 115 were free from headaches 15 minutes after treatment. Among the 145 patients given the placebo, 22 were free from headaches 15 minutes treatment. Use a 0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below. TPT P2 Identify the test statistic.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question
H0​: p1=p2
H1​: p1>p2

identify the test statistic 

In a study of treatments for very painful "cluster" headaches, 156 patients were treated with oxygen and 145 other patients were given a placebo consisting of ordinary air. Among the 156
patients in the oxygen treatment group, 115 were free from headaches 15 minutes after treatment. Among the 145 patients given the placebo, 22 were free from headaches 15 minutes after
treatment. Use a 0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below.
P2
Identify the test statistic.
(Round to two decimal places as needed.)
Transcribed Image Text:In a study of treatments for very painful "cluster" headaches, 156 patients were treated with oxygen and 145 other patients were given a placebo consisting of ordinary air. Among the 156 patients in the oxygen treatment group, 115 were free from headaches 15 minutes after treatment. Among the 145 patients given the placebo, 22 were free from headaches 15 minutes after treatment. Use a 0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below. P2 Identify the test statistic. (Round to two decimal places as needed.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Means
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman