# BME100 f2015:Group4 8amL3

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# OUR TEAM

 Name: Kendra Starkel Name: Anastasia Wyatt Name: Austen Bennett Name: Drew Higgins Name: Michael Vietz Name: Bhavna Ramesh

# LAB 3A WRITE-UP

## Descriptive Statistics

Heart Rate Average
Gold Standard: 95.64367816 bpm

Heart Rate Standard Deviation
Gold Standard: 23.01119989 bpm

Heart Rate Standard Error
Gold Standard:1.23353 bpm

Temperature Average
Gold Standard: 97.26372032 °F

Temperature Standard Deviation
Gold Standard: 1.042288709 °F

Temperature Standard Error
Gold Standard: 0.0536095465 °F

## Inferential Statistics

Heart Rate
A paired t-test was used to compared the average heart rate measured by a pulse oximeter and the Spree Headband. A t-test was used because only two data sets were being compared. Since both sets of data were collected from the same group of people the t-test would be paired rather than unpaired. The p-value from the t-test of the data was 0.097819 and the Pearson's R correlation was 0.886903. Since the p-value was greater than 0.05 there was no significant difference between the gold standard and the Spree Headband for the heart rate readings.

Temperature
A paired t-test was used to compare the average temperature measured by a thermometer and the Spree Headband. A paired t-test was used because the data collected using both devices was taken from the same group of subjects. The p-value from the t-test of the data was 0.249655713 and the Pearson's R correlation was 6.91x10^-68, which is arbitrarily close to zero. The p-value was greater than 0.05 indicating that there was no significant difference between the gold standard and the Spree Headband for the temperature reading. The p-values for the temperature data and the heart rate data were both greater than zero indicating that there was some positive correlation between the type of device used and the measurement taken.

## Summary/Discussion

Design Flaws

Design Strengths
The device was very user friendly, it had a long battery life and the heart rate measurements made by the Spree Headband were fairly accurate.

# LAB 3B WRITE-UP

## Target Population and Need

Target Population
The device targets active males and females over a variety of ages. The main target audience is between 15-40 years old, but it will be useful for everyone. Anyone who is active and interested in understanding their personal health would be interested in this device.

Need
Many people throughout the world struggle with dehydration during workouts and every day life. It is very difficult to measure dehydration without the use of a device. This device will be able to inform the user of their hydration state along with various other functions. Dehydration is a problem that can be prevented if monitored carefully, which is what this device will be capable of doing.

## Device Design

Product Understanding Form

Device Diagram