OUR TEAM
LAB 2 WRITEUP
Descriptive Statistics
Experiment 1  Rat Trial
Rat Trial Statistics
LPS Dose (mg) 
Average Inflammotin Measured (pg/ml) 
Standard Deviation 
Standard Error

0mg 
10.516 pg/ml 
2.225551617 
0.995296941

10mg 
11.112 pg/ml 
7.402885924 
3.310671231

Experiment 2  Human Trial
Human Trial Statistics
LPS Dose (mg) 
Average Inflammotin Measured (pg/ml) 
Standard Deviation 
Standard Error

0 mg 
3.834 pg/ml 
1.523010177 
0.481618106

5 mg 
8.932 pg/ml 
1.593931547 
0.504045412

10 mg 
61.622 pg/ml 
30.11069386 
9.521837451

15 mg 
657.941 pg/ml 
212.9429762 
67.33848166

Results
Experiment 1  Rat Trial
Experiment 2  Human Trial
Analysis
Experiment 1  Rat Trial
tTest: TwoSample Assuming Equal Variances

Variable 1 
Variable 2

Mean 
10.516 
11.112

Variance 
4.95308 
54.80272

Observations 
5 
5

Pooled Variance 
29.8779 

Hypothesized Mean Difference 
0 

df 
8 

t Stat 
0.172401575 

P(T<=t) onetail 
0.433701749 

t Critical onetail 
1.859548038 

P(T<=t) twotail 
0.867403497 

t Critical twotail 
2.306004135 

Experiment 2  Human Trial
Anova: Single Factor
SUMMARY
Groups 
Count 
Sum 
Average 
Variance

Column 1 
10 
38.34 
3.834 
2.31956

Column 2 
10 
89.32 
8.932 
2.540617778

Column 3 
10 
616.22 
61.622 
906.6538844

Column 4 
10 
6579.41 
657.941 
45344.71112

ANOVA
Source of Variation 
SS 
df 
MS 
F 
Pvalue 
F crit

Between Groups 
3027016.695 
3 
1009005.565 
87.25360195 
1.40083E16 
2.866265551

Within Groups 
416306.0267 
36 
11564.0563 



Total 
3443322.721 
39 




The pvalue for the human study was 1.4e^16. On the other hand, the rat study produced pvalues of .433702 for the first set of data, and a value of .867403 for the second set of data. To put these numbers in context, the human pvalue was substantially lower than the ideal pvalue of .05, which concludes the test was extremely accurate. For the rat test, the pvalue was , in both cases, higher than the ideal value of .05, which shows that this portion of the experiment was inconclusive.
Summary/Discussion
Based on the information gathered in the study, the averages, standard deviation, standard error, counts, and pvalues were calculated. For the human trial, a single ANOVA was used to compare four sets of data, and in the rat trail a tTest was used to compared two sets of data. With the collected data, a graph displaying the average value of inflammotin at each dosage of LPS (0mg, 5mg, 10mg, 15mg), verses the standard deviation was created. The graph of the humans showed that at LPS levels of 0mg, 5mg, and 10mg, the level of inflammotin stayed consistently under 100 pg/ml. Once the dosage was increased to 15mg, the inflammotin was increased to 650pg/ml. In the rat study, the level of inflammotin stayed relatively constant in both groups (0mg, and 10mg). The human study produced better results due to the amount and accuracy of the data. On the contrary, the rat data was inconclusive due to the lack of different dosage trials and inconsistent data. With that being said there is a definite positive correlation between LPS and humans, but not the same for rats.
