# BME100 f2014:Group15 L2

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# OUR TEAM

 Name: Michael Catchings Name: Jessica Fong Name: Ben Heywood Name: Norihan Elsharawy Name: Destiny Vidaure Name: Logan Migliorino

# LAB 2 WRITE-UP

## Descriptive Statistics

Experiment 1 - Rat Trial

 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

 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

t-Test: Two-Sample 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) one-tail 0.433701749 t Critical one-tail 1.859548038 P(T<=t) two-tail 0.867403497 t Critical two-tail 2.306004135

Experiment 2 - Human Trial

Anova: Single Factor

 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

 Source of Variation SS df MS F P-value F crit Between Groups 3027016.695 3 1009005.565 87.25360195 1.40083E-16 2.866265551 Within Groups 416306.0267 36 11564.0563 Total 3443322.721 39

The p-value for the human study was 1.4e^-16. On the other hand, the rat study produced p-values 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 p-value was substantially lower than the ideal p-value of .05, which concludes the test was extremely accurate. For the rat test, the p-value 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 p-values were calculated. For the human trial, a single ANOVA was used to compare four sets of data, and in the rat trail a t-Test 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.