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## PowerPoint Slideshow about ' Math 1040 Term Project' - zach

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Presentation Transcript

Our Research Question:

Is length of forearm related to length of hand?

Summary of Project

- Our first variable was the length of a person’s forearm and our second variable was the length of a person’s hand. The unit of measurement was in inches.
- Our group gathered data from 60 random people, half were men and half were women. We then measured the length of their forearm (from elbow to wrist) and their hand length (from wrist to top of middle finger) and recorded our data.

Statistics for First Quantitative Variable(Length of Forearm)

Mean: 11.242 inches

Standard Deviation:

1.696 inches

Range: 11 inches

Mode: 11

Outliers: 18 inches

Five-number summary:

minX= 7 inches

Q1= 10.5 inches

med= 11.25 inches

Q3= 12 inches

maxX= 18 inches

GraphsFirst Quantitative Variable(Length of Forearm)

Statistics for Second Quantitative Variable(Length of Hand)

Mean: 7.129 inches

Standard Deviation:

0.608 inches

Range: 3.25 inches

Mode: 7 inches

Outliers: 5 inches

Five-number summary:

minX= 5 inches

Q1= 7 inches

med= 7 inches

Q3= 7.5 inches

maxX= 8.25 inches

GraphsFirst Quantitative Variable(Length of Hand)

Resultsscatter plot that includes line of regression

Statistics for testing the correlation between the two variables

Linear Correlation Coefficient:

0.66768825

Line of Regression Equation:

y= 4.4385785+ 0.23934068

Analysis, Interpretations, & Conclusion variables

- The linear correlation coefficients from our research are 0.668 and 0.898 , which is close to +1, meaning there is a strong relationship between our X and Y variables.
- One of the people we measured had a long forearm (18 inches!) our data became thrown off and skewed.
- Because of our high correlation coefficients we conclude that there is a strong relationship between length of forearm and length of hand.

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