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Final Project

Final Project. Lisa M. Martinez. Do Women Who B reastfeed L ong T erm H ave a Healthier BMI Score.

stuart-maldonado
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Final Project

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  1. Final Project Lisa M. Martinez

  2. Do Women Who Breastfeed Long Term Have a Healthier BMI Score • To see of there was a correlation between the two variables I gathered data by asking 30 mothers of who had babies in May, 2012 to provide me with their current weight, height and months they spent breast feeding, through the social network of babycenter.com.

  3. Variable 1 • Time. • The unit of measurement for this variable is Months. • Possible values • 0months • 6months • 10months

  4. Variable 2 • Weight. • The unit of measurement for this variable is BMI. • Possible values • 19 BMI • 25 BMI • 32 BMI

  5. BF Months Data • M=6.3 • S=3.743039517 • Five Number Summary Low Q1 M Q3 High 0 2.5 8 10 10 • Outliers 0 data project final (Autosaved).xlsx

  6. BF Months Histogram

  7. BMI Data • M=23.86 • S=4.070188789 • Five Number Summary Low Q1 M Q3 High 17.9 20.7 23.3 25.85 32.2 • Outliers none data project final (Autosaved).xlsx

  8. Line of Regression • ^y=b1x+b0 • B1=r(sy/sx) • b1=-0.041(4.07/3.74)=-0.045079306 • Bo=Y-b1x • Bo=6.3-(-.044)(6)=24.15066629 • ^y=b1x+b0=23.88019046

  9. Correlation Testing • Linear Correlation testing • R=-0.04145597 • data project final (Autosaved).xlsx

  10. Scatterplot

  11. Analysis • There seems to be a lack of linear correlation between months breast feeding and Mothers BMI. As you can see since the R=-0.04145597 is closer to zero. if it was closer to -1 or 1 there would be stronger evidence of correlation between the two variables. • The critical value for a sample of 30 is .361 and the r value I received was lower than -0.04145597 value I needed to believe that there was a strong indicator that one variable affected the other.

  12. Conclusions • Because the critical value for a sample of 30 is .361 and the r value I received was much lower at -0.04145597. I can say that breast feeding long term is not a good indicator that the mother will have healthier BMI score. • You can see in the data charts as well that there is no obvious positive or negative correlation, and it looks like there is little to no correlation.

  13. Difficulties • Difficulties that I had were getting data from a few women who predicted that the two variables had no correlation and also women who didn’t want to give me their weight. • It was also a lot harder than I thought It would be to word the question in a way to make the sample unbias I worded the question three times to get the information I needed.

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