Using the data below Sample size Mean pain Score Std Dev of Pain score New Med 6

Question

Using the data below
Sample size Mean pain Score Std Dev of Pain score
New Med 60 30.31 7.52
Standard med 60 53.85 7.44

Please help me answer this question....I have tried to figure it out and am not able to find the answer.
A clinical trial is conducted to evaluate the efficacy of a new medication to relieve pain in patients undergoing total knee replacement surgery. In the trial, patients are randomly assigned to receive either the new medication or the standard medication. After receiving the assigned medication, patients are asked to report their pain on a scale of 0 to 100, with higher scores indicative of more pain. Because procedures can be more complicated in older patients, the investigators were concerned about confounding by age. For analysis, patients were classified into two groups, less than 65 years old and 65 years of age and older. Here is the data for the pain score by treatment and age.
Age <65
sample size Mean pain score std dev of pain score
new med 40 25.30 2.46
stand med 25 45.51 1.83
total 65 33.07 10.16

Age 65+
sample size Mean pain score std dev of pain score
new med 20 40.33 2.16
stand med 35 59.80 2.49
total 55 52.72 9.74

is there a statistically significant difference in mean pain scores between patients assigned to the new medication as compared to the standard medication? Run the appropriate test at a= 0.05. (ignore age in this analysis)

Explanation / Answer

yes by studying the statistics you gave me i came to the conclusion that the more elderly people have an effect modification by age!!!!!!!!!!!!!!!!

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