BME100 s2015:Group12 12pmL3

BME 100 Spring 2015	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: Corey Soto Name: Kyla Richardson Name: Waseem Aljaid Name: Syeda Rizvi Name: William Chmeilewski LAB 3A WRITE-UP Descriptive Statistics Results Temperature Results Between a Thermometer and the Spree Headband Heart Rate Results Between a Pulse Ox and the Spree Headband Temperature T-Test Value and Additional Data Heart Rate T-Test Value and Additional Data Analysis The team studied the effectiveness of the Spree headband compared to the thermometer and the Pulse Ox device which both served as gold standards for measuring the heart beats per minute and the temperature of a subject respectively. Data analysis showed that the Pearson's Correlation Coefficient of -0.053072216 for temperature represents a negative correlation between the Spree headband and the thermometer. The temperature's T-Test value of 8.5316E-20 is less than the alpha value of 0.05, which is used as a standard to measure data significance. This indicates that there was a significant difference in data between the headband and the thermometer. Based on these two factors, the team believes that the headband was insufficient in measuring the body temperature of an individual accurately. However, the team's data for measuring the rate of heart beats per minute gives a different conclusion. The Pearson's Correlation Coefficient of 0.51788901 indicates that there is a positive correlation between the Spree headband and the Pulse Ox that was used as a gold standard. This discovery is reinforced by the T-Test value of 0.116138892 that was also determined. Since this value surpasses the standard alpha value of 0.05, the conclusion that there was no significance in data between the two temperature groups can be made. This may suggest that data accuracy for measuring the heart beats per minute in an individual may be more apparent, giving the Spree headband more legitimacy in that area of expertise. Summary/Discussion Before the team gives their opinion on the Spree headband device, a disclaimer regarding the experiment must be made. The team's study of the device was postponed by forty-five minutes of time. There was an insufficient amount of Spree devices provided for the laboratory and the supervisors of the lab were forced to find more. This large gap in available time for the experiment proved a hindrance on data collection. The team personally was only able to accomplish half of the experiment with the remaining time left, which may have played some sort of role in the conclusions made regarding the Spree device. With the aforementioned information above, the Spree headband device was an attempt of being a multipurpose fitness tool capable of providing any major needs an individual would have in those activities. It was a failure for several reasons. First, the device required consistent motion on the individual's part in order for data collection to occur. Placed on the forehead, the individual would be less likely to move their head compared to other body parts, such as the wrist or the leg. The team believes that by relocating the device to a more active area on the body, the Spree device would have had better data accuracy and overall reliability, if motion does have to be a factor here. Second, the stress the Spree headband placed on the battery life of a mobile smartphone seemed to be too demanding. One of the research team's members used their Apple iPhone for data collection. The iPhone started with a charge of 35%. By the conclusion of the experiment, the phone was down to a charge of 7% after one hour of use. The team was forced to end the experiment at this moment. They understood that mobile Apple products have a failsafe battery shutdown at 5%, to prevent the death of the mobile's battery. The team recommends that more measures are made to improve the battery demand of the Spree device in order to justify its use to begin with. Lastly, the data collection and how it was represented by the Spree headband was not as simple as the company had advertised. The temperature of an individual was measured using a color and level code. On the device, blue was level 1, yellow was level 2, a partially filled red bar was level 3, and a fully red bar was level 4. No actual numerical measure was given for temperature, which required the team to decipher what each level meant. This system of measuring temperature is ineffective in providing what the customer would want when recording body temperature. The team recommends the removal of the color and level code and replacing it by using both the Fahrenheit and Celsius numerical method. This is to provide a more simplistic interaction with the Spree device and the individual who uses it. LAB 3B WRITE-UP Target Population and Need Device Design Inferential Statistics Graph