BME100 s2017:Group3 W8AM 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 Name: Anna Deng Name: Tyler Grenier Name: Jacqueline Klier Name: Andy Tang Name: D'Kiehl Cole-Cash Name: Robert Arthur LAB 3 WRITE-UP Descriptive Stats and Graph Inferential Stats A paired t-test was used for both the oral thermometer and pulse ox, due to the comparison of two samples. Heart Rate Standard Deviation Pulse Ox Gold Standard : 21.70 Standard Deviation Pulse Ox Spree: 24.27 R-value: 0.78 T-test (p-value): 0.671 Temperature Standard Deviation Oral Thermometer Gold Standard: 1.92 Standard Deviation Oral Thermometer Spree: 0.87 R-value: 0.193 T-test (p-value): 1.067*10^-21 The Spree device is reliable when calculating heart rate, but is not a reliable device to measure temperature according to the t-tests. The oral thermometer yielded a p-value under 0.05, which shows a significant difference in the data; however, the pulse ox yielded a p-value greater than 0.05, meaning that the data is similar and reliable. This conclusion can also be drawn by referring to the r-value. The r-value for the pulse ox is approaching one which shows a high correlation and the r-value for the oral thermometer is very low which shows a low correlation. By yielding a r-value close to 1, it illustrates that the device has a high validity as well as reliability. Design Flaws and Recommendations The primary design flaw that the device consisted of is failure to accurately measure the internal temperature of the user, causing the overall product to be unreliable even if the pulse ox properly functioned without flaws. In order to reduce the error, a solution to the temperature dilemma could be to instead provide the user with colors that indicate the range of body temperature. Overall, by increasing the accuracy or reading of the internal body temperature of the device compared to the original, the overall quality and reliability of the product will drastically increase. Experimental Design of Own Device For an experiment: The first objective would be to locate a diverse sample population of people that are in need of a mobility enhancing exoskeleton. This sample, ranging of different ages and mobility constraints, will be given our exoskeleton and the amount of battery used by certain tasks and overall battery life per day will be measured. Some of these tasks can be as simple as a typical day of walking, or even analyzing the battery usage during certain exercises. Then, we would measure both the battery percentage used per task and per day and compare this to our competitor exosuits in order to determine if our exosuit is more efficient. As for actual customer satisfaction, we would compare both our own exoskeleton and our competitors’ exoskeleton with common tests, such as sitting, standing, and walking speed. The results of these will then tell us whether our device is more efficient without sacrificing viability.