Assignment: Mean, Median and Mode: which to use?
A clinical trial was performed on a new surgical procedure. Two groups were identified as the Study Group and the Control Group. The data from the clinical trial is presented in the table below.
1. Write an analysis of the results of this study in which you indicate which measure of central tendency (Mean or Median) you would select for your analysis. Explain why.
2. Why do you think the mode is blank?
|
ICU LOS in DAYS
|
HOSPITAL LOS in DAYS
|
ICU CHARGES
|
HOSPITAL CHARGES
|
|
STUDY
|
|
|
|
|
|
Mean
|
8.7
|
33.2
|
$35,577
|
$78,877
|
|
Median
|
3
|
15
|
$10,496
|
$39,758
|
|
Mode
|
|
|
|
|
|
Range
|
1-178
|
2-254
|
$1,123-$304,152
|
$7,144-$838,282
|
|
|
|
|
|
|
CONTROL
|
|
|
|
|
|
Mean
|
5.7
|
21.4
|
$21,140
|
$56,517
|
|
Median
|
3
|
14
|
$9,836
|
$40,314
|
|
Mode
|
|
|
|
|
|
Range
|
1-43
|
4-128
|
$1,714-$188,245
|
$9,644-289,045
|