Question

Pain level of 25 patients suffering from migraine are measured before and after a treatment. The confidence interval of matched pair difference of pain level difference = d(before - after)is calculated. Make conclusion from each of the following results. a) 95% confidence interval is $-3.9 < \mu_d < -1.4$. Choose the correct conclusion. Pain level has decreased significantly, conclude treatment is effective. Pain level has actually increased significantly, conclude treatment is not effective and harmful. Pain level of before and after have no significant difference, conclude treatment is not effective. b) 95% confidence interval is $-1.9 < \mu_d < 2.4$. Choose the correct conclusion. Pain level has decreased significantly, conclude treatment is effective. Pain level of before and after have no significant difference, conclude treatment is not effective. Pain level has actually increased significantly, conclude treatment is not effective and harmful. c) 95% confidence interval is $1 < \mu_d < 3.9$. Choose the correct conclusion. Pain level has actually increased significantly, conclude treatment is not effective and harmful. Pain level of before and after have no significant difference, conclude treatment is not effective. Pain level has decreased significantly, conclude treatment is effective.

          Pain level of 25 patients suffering from migraine are measured before and after a treatment. The confidence interval of matched pair difference of pain level difference = d(before - after)is calculated. Make conclusion from each of the following results.
a) 95% confidence interval is $-3.9 < \mu_d < -1.4$. Choose the correct conclusion.
Pain level has decreased significantly, conclude treatment is effective.
Pain level has actually increased significantly, conclude treatment is not effective and harmful.
Pain level of before and after have no significant difference, conclude treatment is not effective.
b) 95% confidence interval is $-1.9 < \mu_d < 2.4$. Choose the correct conclusion.
Pain level has decreased significantly, conclude treatment is effective.
Pain level of before and after have no significant difference, conclude treatment is not effective.
Pain level has actually increased significantly, conclude treatment is not effective and harmful.
c) 95% confidence interval is $1 < \mu_d < 3.9$. Choose the correct conclusion.
Pain level has actually increased significantly, conclude treatment is not effective and harmful.
Pain level of before and after have no significant difference, conclude treatment is not effective.
Pain level has decreased significantly, conclude treatment is effective.

$Pain level of 25 patients suffering from migraine are measured before and after a treatment. The confidence interval of matched pair difference of pain level difference = d(before - after)is calculated. Make conclusion from each of the following results. a) 95% confidence interval is $-3.9 < \mud < -1.4$. Choose the correct conclusion. Pain level has decreased significantly, conclude treatment is effective. Pain level has actually increased significantly, conclude treatment is not effective and harmful. Pain level of before and after have no significant difference, conclude treatment is not effective. b) 95% confidence interval is $-1.9 < \mud < 2.4$. Choose the correct conclusion. Pain level has decreased significantly, conclude treatment is effective. Pain level of before and after have no significant difference, conclude treatment is not effective. Pain level has actually increased significantly, conclude treatment is not effective and harmful. c) 95% confidence interval is $1 < \mud < 3.9$. Choose the correct conclusion. Pain level has actually increased significantly, conclude treatment is not effective and harmful. Pain level of before and after have no significant difference, conclude treatment is not effective. Pain level has decreased significantly, conclude treatment is effective.$

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