BME100 f2015:Group12 1030amL3
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LAB 3A WRITE-UP
Spree Mean (°F): 99.27
Gold Standard Mean (°F): 97.26
Gold Standard Standard Deviation: 1.170
Spree Mean (bpm): 88.31
Gold Standard Mean (bpm): 88.92
Gold Standard Standard Deviation: 23.232
Pearson's R Coefficient: 0.16743
T-Test Result: 7.6*10^-82
Pearson's R Coefficient: 0.823329
T-Test Result: 0.390218
The Pearson's R coefficient of .16743 indicates that the two methods of measuring temperature had a small positive correlation. The Student's T-Test value of 7.6*10^-82 indicates that there is a statistically significant difference between the two sampling methods.
The Pearson's R coefficient of .823329 indicates that the two methods of measuring temperature had a large positive correlation. The Student's T-Test value of .390218 indicates that there is no statistically significant difference between the two sampling methods.
Spree headband had a multitude of design flaws that limited its performance in regards to comfort, accessibility, and temperature tracking. For starters, the device itself was not aesthetically pleasing. The headband design itself was a flaw, and the overall design was too big and bulky. When worn for a prolonged period of time the subject experienced discomfort. This also left an unsatisfactory marking on the subject's forehead. In regards to accessibility, the companion app that accompanied the device was poorly designed, and connecting via Bluetooth was a hassle because each device had an identical, generalized name of "Spree." The temperature tracking was not quantitative, which led to imprecision. It did not display the actual temperature of the subject, but rather displayed the temperature in four shades of color.
Several simple modifications to the device's design are recommended. In regards to comfort one could simply change the location of the Spree from the forehead to the wrist. Having this device on the wrist rather than the forehead will allow greater comfort by slimming down the size of the device and making it more aesthetically pleasing. With the app and Bluetooth connected, a simple tweak to default name is all that is needed. To correct the issue of how temperature is recorded, the manufacturers should change from the color reading to a numerical value to allow a more specific reading of the subjects temperature.
LAB 3B WRITE-UP
HALO - "Always Watching Over You"
Target Population and Need
Target population: Our target population is Americans living with diabetes and those prone to heart attacks. In America, 29.1 million people have diabetes while 1 in four deaths annually are due to heart disease.
Needs: Specific needs of the population include: 24/7 heart rate/blood glucose monitoring, the ability to interact with phone and doctors, comfortableness, and a simple design.
22 heart rate, temperature, and glucose measurements were taken from each of 16 test subjects with both the HALO sensor and a gold standard sensor.