Data for exercise: Decreases in body temperature (degrees Fahrenheit):
|
Group 1 (aspirin)
|
0.95
|
1.48
|
1.33
|
1.28
|
|
|
|
Group 2 (ibuprofen)
|
0.39
|
0.44
|
1.31
|
2.48
|
1.39
|
|
|
Group 3 (acetaminophen)
|
0.19
|
1.02
|
0.07
|
0.01
|
0.62
|
-0.39
|
This trial evaluated the fever reducing effects of three substances. Study subjects were adults seen in an emergency room with diagnosis of flu with body temperatures between 100.0 degrees F to 100.9 degree F. The three treatments aspirin, ibuprofen, and acetaminophen were assigned randomly to study subjects. Body temperatures were reevaluated 2 hours after administration of treatments. Display the above data with side-by-side box plots and calculates the mean and standard deviation of each group and describe what you find then produce an ANOVA for the problem. Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Calculate the mean and standard deviation of each group.