BME100 f2014:Group6 L3

BME 100 Fall 2014	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: Yamilex Bustamante Name: Paul Chua Name: Galt Goettl Name: Prakriti Shukla Name: Laura Stokes Name: Gavin White LAB 3A WRITE-UP Descriptive Statistics Results Analysis T-test is used because there are only two variables measured/compared: the gold standard and the spree.The temperature's negative Pearson's r value indicates that there is a weak negative correlation(between standard and spree). The heart rate's Pearson's r shows a positive correlation, but the relationship between the two variables(standard and spree) is weak because the Pearson's r is close to 0. The p-value for the temperature readings between the oral thermometer and the Spree Band is 5.60E-239 which means that there is a significant difference, based off of the 95% confidence interval) between the temperature measured with the Spree Brand and the oral thermometer. The p-value for the heart rate data between the Spree Band and the pulse ox is 0.217644 signifying that there is NOT a significant difference between the measurements taken on the spree and the heart rate monitor using the 95% confidence level because the p-value is significantly higher than 0.05. In conclusion, the Spree Band did not provide an accurate temperature reading due to the high variance between the oral temperature reading and the Spree Band's "range" temperature reading; however, the data showed that the heart rate measurements had less variance between the points causing the readings to be more accurate, but the exact accuracy is unknown but is within the 95% confidence interval. Summary/Discussion The Spree Head Band had multiple issues with its design. One of the issues included bluetooth connection with the Iphone and the headband. While walking around campus, connectivity was lost between the band and the phone and the trial had to be re-started. This could be improved by a cord connection to the phone and the headband. Though this would impact aesthetic features of the spree band, it would improve connectivity. Another problem would be the fact that the spree band did not give a specific temperature just a scale of 1.2 3 and 4. During the analysis, a scale was used to convert the spree band numbers into actual temperatures. These numbers were just approximations of the actual temperature. An improvement to give a more accurate reading would be to report the actual temperatures on the spree band so it can be more easily compared to the gold standard to see if it was an accurate reading. Another inaccuracy was where the spree band was measuring the temperature. The spree band was measuring the temperature on the skin. While walking outside, the core body temperature increases and a natural response to cool the body down would be to sweat, thus lowering the skin temperature, and affecting the temperature the spree band portrays. A correction for this would be LAB 3B WRITE-UP Target Population and Need Device Design Inferential Statistics Graph