Question

In: Statistics and Probability

Two different pain reliever drugs, “Drug A” and “Drug B,” are developed to relieve arthritis pain....

Two different pain reliever drugs, “Drug A” and “Drug B,” are developed to relieve arthritis pain. A clinical study recruits 15 individuals with arthritis. The individuals are given each drug on different days and the number of hours of pain relief for each drug is recorded. This data is in the “arthritis.csv” data file. a) State the appropriate hypotheses to test if there is a difference in the hours of pain relief for Drug A versus Drug B, using “Drug A” as sample 1. b) Use RStudio and report a 93% confidence interval for the difference. Based on this confidence interval, what conclusion can be reached with respect to the hypotheses in a)?

Data

DrugA

DrugB

9.3

 12.1
6.5 6
8.8 9.3
8.9 9
13 12
12.4 13.5
3.8 4.5
6 6.6
4 4
3.8 5.5
7.2 5.2

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Exercise 3.11 A new drug is being used to relieve the pain of arthritis. However, the...
Exercise 3.11 A new drug is being used to relieve the pain of arthritis. However, the drug may reduce a patient’s heartbeat too much. To investigate the drugs effect on a person’s heartbeat, different dosages of the drug were given to six patients, and 30 minutes later, the decrease in each patient’s heartbeat was recorded. Dosage X = (2.0, 1.5, 3.0, 2.5, 4.0, 3.0) measured in ml.?Decrease Y = (15, 20, 18, 16, 19, 17) measured in beat per minute...
A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo.
  A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo and the outcome is pain relief within 30 minutes. Of the 120 participants who received the new medication, 44 reported pain relief, while 21 out of the 120 participants who received the placebo reported pain relief. Is there a significant difference in the proportions of patients reporting pain relief? Run the test...
A drug manufacturer uses two production facilities to produce a pain reliever. The amount of the...
A drug manufacturer uses two production facilities to produce a pain reliever. The amount of the active ingredient of the drug in the capsules at the two​ facilities, X1 and X2, are normally distributed random variables. The desire of the quality control manager is that the population mean amounts of the active ingredient in the​ capsules, μ1 and μ2​, be equal. Recent tests on small samples have indicated a noticeable increase in the amount of the active ingredient in capsules...
researchers at a drug company are testing the duration of a new pain reliever. the drug...
researchers at a drug company are testing the duration of a new pain reliever. the drug is normally distributed with a mean durtion of 240 minutes and a standard deviation of 40 minutes the drug is administered to a random sample of 10 people..what is the populatin mean? what is the standard deviation? what is the sample size? can normal approximation be use for this problem? what is the mean of the samle means? what is the standard deviation of...
A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants...
A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo and the outcome is pain relief within 30 minutes. The data are shown below. Pain Relief No Pain Relief New Medication 44 76 Placebo 21 99 Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance. Step 1.           Set up...
A sample of 800 arthritis patients participate in a test of a new pain reliever. 624...
A sample of 800 arthritis patients participate in a test of a new pain reliever. 624 of the participants rate their pain as ‘substantially reduced’. Give a 95% lower bound confidence interval for the proportion of arthritis patients whose pain would be substantially reduced when taking the new pain reliever. Interpret your result.
A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants...
A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo and the outcome is pain relief within 30 minutes. The data are shown here. Pain Relief No Pain Relief New Medication 45 75 Placebo 20 100 Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance. H0: p1= p2(equivalent to RD...
Question 5 Two new drugs are under development (drug A, drug B) with different mechanisms of...
Question 5 Two new drugs are under development (drug A, drug B) with different mechanisms of action for treating high cholesterol. These two groups were used in a clinical trial along with a placebo control group.There were 21 patients with high cholesterol available, and 7 were randomized to each treatment group.The reductions in cholesterol level from baseline (as a percentage of baseline) are shown in the table below. We want to know if either of the two drug groups is...
A drug manufacturer markets a brand of pain reliever that it claims to be 95% effective...
A drug manufacturer markets a brand of pain reliever that it claims to be 95% effective in relieving headache pain. Assume that the effect of the drug on each person is independent of the effect on all other people receiving the drug, and the 95% effective rate is the same for each person with headache pain. A consumer group decides to select a sample of 20 people at random who suffer from headache pain and give them the medicine. If...
A drug manufacturer markets a brand of pain reliever that it claims to be 96​% effective...
A drug manufacturer markets a brand of pain reliever that it claims to be 96​% effective in relieving headache pain. A consumer group decides to select a sample of 21 people at random who suffer from headaches and give them the medicine. They will then count the number of people who indicate to have experienced relief from their pain. Assume that the effect of the drug on each person is independent of the effect on all other people receiving the...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT