BME100 s2017:Group2 W1030AM L3

BME 100 Spring 2017	Home People Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3 Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6 Course Logistics For Instructors Photos Wiki Editing Help
OUR TEAM |100px|thumb|Name: Anh Nguyen]] |100px|thumb|Name: Sheridan Hill]] |100px|thumb|Name: Kiryl Sheleg]] Name: Thomas Andrews Name: Skye Russell Name: Derall Riley LAB 3 WRITE-UP Descriptive Stats and Graph Heart Rate: Pulse Ox Mean: 98.5218 Pulse Ox Standard Deviation: 23.0305 Spree Band Mean: 98.9538 Spree Band Standard Deviation: 24.8775 Pearson’s r Between the Pulse Ox and Spree Band: 0.6908 Temperature: Oral Thermometer Mean: 96.6472 Oral Thermometer Standard Deviation: 1.9226 Spree Band Mean: 95.3509 Spree Band Standard Deviation: 0.8704 Pearson’s r Between the Oral Thermometer and Spree Band: 0.1928 Heart Rate Graph Pearson’s R Graph of Heart Rate Temperature Graph Pearson’s R Graph of Temperature Inferential Stats Paired T test between Pulse Ox and Spree band: The statistical test had a p-value of 0.4271, which is less than 0.95. This means there is a statistical difference between the Pulse Ox and the Spree Band. Paired T Test between oral thermometer and Spree Band: The statistical test had a p-value of 1.1e-21. This value is essentially zero. Since this P value is less than 0.95, there is a significant difference between the oral thermometer and Spree Band. Design Flaws and Recommendations After looking at the results, we can conclude that the Spree Band is not as good as the gold standard for measuring heart rate (pulse ox) and temperature (oral thermometer) because of the large statistical difference between the band and the gold standard. The results of the paired T-test were 0.43 for the heart rate measurement and essentially 0 for the measurement of temperature. Both of these values are too small, so we have to conclude there is a statistical difference between the Spree Band and the gold standards. The results of the descriptive statistical tests were not much better. Although we observe similar means between the Spree Band measurements and the measurements from the gold standard devices, the standard deviations for the heart rate measurements are quite large. The standard deviation for temperature is much smaller because body temperature should not fluctuate too much. Even so, looking at the Pearson’s r value, we see that the result still points to a statistical difference because the values were too small (0.69 for heart rate and 0.19 for temperature). After looking at all these numbers, we have to conclude that the claim made by Spree Sports is incorrect. Their device does not accurately measure a person’s heart rate or temperature. This is because of the design flaw of the Spree Band. Because of the placement of the band on a person, it cannot take accurate readings of the heart rate and temperature. As a recommendation, we suggest a new design. Current technologies are not good enough to have the Spree Band give accurate measurements as is. Experimental Design of Own Device