BME100 s2014:W Group13 L3

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Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3
Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6
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Name: Nicole Phillips
Name: Augusta Dumanski
Name: Christian Kaiser
Name: Christiana Montoi-Reeve
Name: Francis Taguinod


Descriptive Statistics

Our statistics shows some significancy in the accuracy of each of the devices that we used during our experimentation. For the temperature we have:

Average Temperature

and for our blood pressure and heart rate tests we have:

Average Blood Pressure

for our heart rate:

Average Heart Rate


Our scatter plot data shows the following correlation of each group's findings: Temperature scatter plot

Temperature scatter plot

alongside a Pearson's r = 0.205964

The blood pressure scatter plot:

Blood Pressure Scatter plot

with a Pearson's r = 0.149553

Heart rate scatter plot:

Heart Rate scatter plot

with a Pearson's r = 0.710662


During the experiment pertaining to the temperature devices, the oral device was more accurate than the skin sensor. The skin sensor also showed some signs of difficulty in trying to obtain the appropriate amount of data. The average temperature for the oral sensor was about 97.70 degrees fahrenheit while the average temperature for the skin sensor was 96.49 degrees fahrenheit. The standard deviation for both devices were also above the standard 0.05 p value, the oral and skin sensor t test value was 1.0843E-05, this shows that this is a significant number.

The blood pressure tests showed interesting results. The average blood pressure for the blood pressure cuff was around 118.05 while the average blood pressure for the wrist sensor was around 112.2833. The t test values for the blood pressure test was around 0.000150953. This t test value shows that it is significance in regards to the standard p value.

Finally our heart rate test showed different results. The t test value was different in which it was 0.37578253, which shows that it is not a significant number since it does not satisfy the standard p value of 0.05. Also, the average heart rate was very close in both the devices, 87.9625 and 86.74166667 for the Ox Pulse and wrist wensor respectively.

Pearson's number was also positive for all the experiments, each being above the value of 0 but not going beyond the value of 1.


In our final thoughts, the medical devices were a bit faulty in a way. Regarding the temperature devices, the skin sensor was not very trustworthy as it seems to have several issues with connection and scanning for body temperature. The oral temperature was still an effective way of measuring a patient's body temperature but not to the most accurate levels. The skin sensor and oral thermometer still showed signs of accuracy though, and they both have a postive but very miniscule correlation, in regards to Pearson's r. Also, it seems that during the data gathering some groups were not receiving data from the skin sensor module as the number of test counts from the oral themometer was 307 while the skin sensor was 295, showing some difficulty in using the device. It could have been possible that the amount of interference in the lab room was affecting the stability and accuracy of the devices.

Pertaining to the blood pressure test it had similar results, with miniscule differences. This might prove that both devices worked accordingly to their deisgn and are therefore accurate in determining to blood pressure, this is also similar with the heart rate case. The average heart rate graph shows that there was very little differences in both of the devices and they could be performing in similar functions, so there could be no significant difference in using them. Also, the heart rate's Pearson's r showed the greatest amount of correlation with a figure of 0.710662. Overall the medical devices for the blood pressure test and heart rate tests were very good in achieving its goals.


Target Population and Need

Our target population that we choose are female subjects. The device would help female athletes or any type of get goer in which the device would be capabale of measuring the subject's heart rate and body temperature.

Device Design

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Our product will have a similar appearance to a regular bra, however there will be small measuring devices inside the bra that would allow all of its capability of monitoring heart rate and blood pressure to be fully functional, in addition, the bra will be made with flexible and comfortable material that allows comfort in movement for the breast region. Other types of bra will have different styles in them in which the customers can choose whichever style they want along with a multitude of colors to choose from.

Inferential Statistics

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