BME100 s2017:Group2 W8AM L3

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OUR TEAM

Name: Dallas Charles
Name: Abigail Hanson
Name: Daniel Jimenez
Name: Vanessa Sanders
Name: Kathryn Smith
Name: David Walker

LAB 3 WRITE-UP

Descriptive Stats and Graph


Body Temperature


Body Temperature Values

File:Mean temp1.jpg



Body Temperature Pearson's R-value Correlation

File:Other graph temp.jpg

Heart Rate


Heart Rate Values



Heart Rate Pearson's R-value Correlation


Inferential Stats



Body Temperature


Body Temperature T-Test


Body Temperature Graph

File:Graph temp.jpg

Heart Rate


Heart Rate T-Test


Heart Rate Graph

Design Flaws and Recommendations

The Spree headband cannot accurately measure body temperature. The paired t-test between the Spree headband and an oral thermometer gave a p-value of <0.0001, showing that there is a statistical difference between the two data sets. To improve this design, Spree headbands will need to come up with a new technology that can use a surface sensor to measure an accurate body temperature.

Experimental Design of Own Device

We will need to test 4 different groups: people with heart conditions, truck drivers, autistic people, and athletes.

For the people with heart conditions and athletes, we will have a sample size of 30 people for each group. We will measure their resting heart rate continuously for 5 minutes using our device as well as the Gold Standard, which is a pulse oximeter. Then we will have them walk or jog, depending on ability, for 3 min continuously measuring their heart rate with both devices. Finally, we will have them cool down and continuously measure their heart rate. This test will show how accurate our device is at measuring changes in heart rate.

For truck drivers, we will have 30 people. We will have them wear our device as well as the pulse ox for 8 hours during the day while they are awake and 8 hours while they are sleeping. This is to make sure we can accurately measure change in heart rate while sleeping and awake.

We will have 30 autistic people wear both devices for a week and record when they have a meltdown. This experiment will see if our device can accurately measure the change in heart rate when someone undergoes a significant amount of stress.

To analyze the data, a paired t-test for each of the 4 different groups would be used to make sure the heart rate is being measured accurately in all scenarios.