3.
Let the proportion of patients who got relieved from headache and who were treated with oxygen be p1 and the proportion of patients who got relieved from headache and who were given placebo be p2
Here we are to test
The given data is summarized as follows:
Sample 1 | Sample 2 | |
Sample size | n1=150 | n2=148 |
Sample proportion |
The test statistic is given by
where p is given by
The test statistic follows standard normal distribution.
The critical value is obtained as
As the observed value is greater than the critical value, we reject the null hypothesis at 1% level of significance and hence conclude that the oxygen treatment is efffective at 1% level of significance.
4.
Here we are to find a 98% confidence interval for p1-p2
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3. In a study of treatments for very painful "cluster" headaches, 150 patients were treated with...
In a study of treatments for very painful "cluster" headaches, 159 patients were treated with oxygen and 149 other patients were given a placebo consisting of ordinary air. Among the 159 patients in the oxygen treatment group, 126 were free from headaches 15 minutes after treatment. Among the 149 patients given the placebo, 29 were free from headaches 15 minutes after treatment. Use a 0.05 significance level to test the claim that the oxygen treatment is effective. Test the claim...
In a study of treatments for very painful "cluster" headaches, 144 patients were treated with oxygen and 144 other patients were given a placebo consisting of ordinary air. Among the 144 patients in the oxygen treatment group, 106 were free from headaches 15 minutes after treatment. Among the 144 patients given the placebo, 31 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)...
In a study of treatments for very painful "cluster" headaches, 140 patients were treated with oxygen and 155 other patients were given a placebo consisting of ordinary air Among the 140 patients in the oxygen treatment group, 121 were free from headaches 15 minutes after treatment Among the 155 patients given the placebo. 29 were free from headaches 15 minutes after treatment. Use a 001 significance level to test the claim that the oxygen treatment is effective Consider the first...
In a study of treatments for very painful "cluster" headaches, 148 patients were treated with oxygen and 159 other patients were given a placebo consisting of ordinary ar. Among the 148 patients in the oxygen treatment group, 106 were free from headaches 15 minutes after treatment. Among the 159 patients given the placebo. 37 were free from headaches 15 minutes after treatment. Use a 0.01 significance level to test the claim that the oxygen treatment is effective. Complete parts (a)...
In a study of treatments for very painful "cluster" headaches, 154 patients were treated with oxygen and 154 other patients were given a placebo consisting of ordinary air. Among the 154 patients in the oxygen treatment group, 107 were free from headaches 15 minutes after treatment. Among the 154 patients given the placebo, 36 were free from headaches 15 minutes after treatment. Use a 0.01 significance level to test the claim that the oxygen treatment is effective. Complete parts (a)...
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 in the oxygen treatment group, 110 were free from headaches 15 minutes after treatment. Among the 157 patients given the placebo, 23 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)...
In a study of woments for very unter" headaches, 16 patients were treated with oxygen and 146 other patients were given a placebo coordinary Among the patients in the skypen treatment group, 123 were free from headaches 15 minutes after treatment Among the 196 ports on the placebo, 28 were free from headaches 15 minutes after treatment the Oscancerved to test the claim that the wygen att etective Complete para toch below a. Test the coming a hypothesis test Consider...
(a) Identify Test Statistic--------------------? (Round to two decimal places as needed) (b) Identify the P Value------------------------? (c) Identify Critical Value-----------------------? (d) Construct appropriate Confidence interval--------------------? (e) State Conclusion-----------------------? In a study of treatments for very painful "cluster" headaches, 159 patients were treated with oxygen and 147 other patients were given a placebo consisting of ordinary air. Among the 159 patients in the oxygen treatment group, 124 were free from headaches 15 minutes after treatment. Among the 147 patients given the...
Student Name Math 1342-Statistics ONLINE Final Exam Part 1- hardcopy DUE: Thursday 01/17/2019 by Spm. I work to the blackboard course Ema『ink. Sow your work on this e, sean picture and upload to "Email" message. Show alll your work to receve full credit DO NOT email to eakuir51eepcc.edu. Attach this as your irst page. Preferred format a PDF fte. NS PE 646 Headache Treatment In a study of treatments for very painful "cluster headaches, 150 patiants were tre ste d...
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