Question

In: Statistics and Probability

A pharmaceutical company tested four formulations of a pain relief medicine for migraine headache sufferers. For...

A pharmaceutical company tested four formulations of a pain relief medicine for migraine headache sufferers. For the experiment, 32 volunteers were selected and 8 were randomly assigned to one of four drug formulations. The subjects were instructed to take the drug during their next migraine headache episode and to report the time it needs for their pain to go away after taking the drug. Carry out an appropriate test to see if there are any mean differences in pain relief time (in minutes) among the four drug formulations. Calculate the mean squares for treatments (MST), the mean squares for error (MSE), and the value of the test statistic (or the F-ratio). The ANOVA table is listed below.

Analysis of Variance

Source

Sum-of-Squares

df

Mean-Square

F-ratio

P-value

drug formulation

18.2222

3

0.0028

Error

28

Total

46.6666

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

A pharmaceutical company tested three formulations of a pain relief medicine for migraine headache sufferers. For...
A pharmaceutical company tested three formulations of a pain relief medicine for migraine headache sufferers. For the experiment, 88 volunteers were randomly assigned to one of three drug formulations. The subjects were instructed to take the drug during their next migraine headache episode and to report their pain level on a Likert scale of 1 (no pain) to 10 (extreme pain) 30 minutes after taking the drug. Is there a significant difference in the mean pain level for at least...
A pharmaceutical company tested three formulations of a pain relief medicine for migraine headache sufferers. For...
A pharmaceutical company tested three formulations of a pain relief medicine for migraine headache sufferers. For the experiment, 27 volunteers were selected and 9 were randomly assigned to one of three drug formulations. The subjects were instructed to take the drug during their next migraine headache episode and to report their pain on a scale of 1 = no pain to 10 = extreme pain 30 minutes after taking the drug. a. Identify the response variable for this experiment. __________________________________(2)...
A drug company tested three formulations of a pain relief medicine for migraine headache sufferers. For...
A drug company tested three formulations of a pain relief medicine for migraine headache sufferers. For the experiment 27 volunteers were selected and 9 were randomly assigned to one of three drug formulations. The subjects were instructed to take the drug during their next migraine headache episode and to report their pain on a scale of 1 to 10 (10 being most pain). Drug A Drug B Drug C 4 6 6 5 8 7 4 4 6 3 5...
Problem 1. A drug company tested three formulations of a pain relief medicine for migraine headache...
Problem 1. A drug company tested three formulations of a pain relief medicine for migraine headache sufferers. For the experiment 27 volunteers were selected and 9 were randomly assigned to one of three drug formulations. The subjects were instructed to take the drug during their next migraine headache episode and to report their pain on a scale of 1 to 10 (10 being most pain).              Drug A 4 5 4 3 2 4 3 4 4              Drug B 6 8...
Use SPSS for this Application Exercise: A pharmaceutical company tested three formulations of a pain relief...
Use SPSS for this Application Exercise: A pharmaceutical company tested three formulations of a pain relief medicine for migraine headache sufferers. Volunteers were selected and randomly assigned to one of the three drug formulations. The volunteers were instructed to take the drug during their next migraine headache episode and to report their pain on a scale of 1 to 10 (10 being most pain). The data are below. What can be concluded with ? = 0.05? formulation A formulation B...
Use SAS to answer the question: A drug company tested three formulations of a pain relief...
Use SAS to answer the question: A drug company tested three formulations of a pain relief medicine for migraine headache sufferers. For the experiment 27 volunteers were selected and 9 were randomly assigned to one of three drug formulations. The subjects were instructed to take the drug during their next migraine headache episode and to report their pain on a scale of 1 to 10 (10 being most pain) Drug A: 4 5 4 3 2 4 3 4 4...
The manufacturer of an over-the-counter pain reliever claims that its product brings pain relief to headache...
The manufacturer of an over-the-counter pain reliever claims that its product brings pain relief to headache suffers in less than 3.5 minutes, on average. In order to be able to make this claim in its television advertisements, the manufacturer was required by a particular television network to present statistical evidence in support of the claim. The manufacturer reported that for a sample of 50 headache sufferers, the mean time to relief was 3.3 minutes and the standard deviation was 66...
1.  An investigator wishes to compare the average time to relief of headache pain under three distinct...
1.  An investigator wishes to compare the average time to relief of headache pain under three distinct medications, call them Drugs A, B, and C. Fifteen patients who suffer from chronic headaches are randomly selected for the investigation, and five subjects are randomly assigned to each treatment. The following data reflect times to relief (in minutes) after taking the assigned drug. Test if there is a significant difference in the mean times among three treatments. Use α = 0.05. (apply ANOVA)...
3. A company claims that its medicine, Brand A, provides faster pain relief than another company’s...
3. A company claims that its medicine, Brand A, provides faster pain relief than another company’s medicine, Brand B. A researcher tested both brands of medicine on two groups of randomly selected patients. The results of the medical tests are given in the following table. The mean and standard deviation of relief times are in minutes. Brand Sample Size    Mean Relief Times    Standard Deviation of Relief Times Brand A 25 44 11 Brand B 22 49 9 (a) Define...
A new drug for pain relief is being tested within a given palliative care population. The...
A new drug for pain relief is being tested within a given palliative care population. The new drug is being compared to an already approved pain relief drug that is commonly used in providing palliative care to patients who experience chronic severe pain. Assume the patients are asked to rate the pain on a scale from 1 to 10, and the data presented below was obtained from a small study designed to compare the effectiveness of the two drugs. Set...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT