Given,
The hypothesis is,
D.
The test statistic is,
The p value is,
P-value = 0.000
b.
The P-value is lesser than the significance level of a = 0.05, so reject the null hypothesis. There is enough/sufficient evidence to support the claim that the cure rate with oxygen treatment is higher than the cure rate fot those given a placebo.
The 90% confidence interval is given by,
Therefore,
The 90% confidence interval is 0.475 < (p1 - p2) < 0.670
Conclusion based on confidence interval is,
Because the confidence interval limits does not include 0, it appears that the two cure rate are different. Because the confidence interval limits include non zero values, it appears that the cure rate is greater for the oxygen tratment than for the placebo
c.
Base on the results,
B. The results suggest that the oxygen tratment is effective in curing "cluster" headaches
In a study of treatments for very painful "cluster" headaches, 153 patients were treated with oxygen...
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, 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, 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, 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)...
3. In a study of treatments for very painful "cluster" headaches, 150 patients were treated with oxygen and 148 other patients were given a placebo consisting of ordinary air. Among the 150 patients in the oxygen treatment group, 116 were free from headaches 15 minutes after treatment. Among the 148 patients given the placebo, 29 were free from headaches 15 minutes after treatment. We want to use a 0.01 significance level to test the claim that the oxygen treatment is...
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...
1. Identify the test statistic. Z=_____(Round to two decimal places as needed.) Identify the P-value. P=_____(Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is (1)_____ the significance level of α=0.05, so (2)_____ the null hypothesis. There (3)_____ evidence to warrant rejection of the claim that women and men have equal success in challenging calls. b. Test the claim by constructing an appropriate confidence interval. The 95% or 99% confidence interval...
(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...
9.1 question 10 what is the p- value? what is the confidence interval? 9.1 question 10 part 2 what is the p- value? what is the confidence interval? Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 33 of the 39 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 86 of the 99 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on...