http://www.biostathandbook.com/hypothesistesting.html (Great intro to hypothesis testing in biology, first half is especially applicable for this project!)

https://www.youtube.com/watch?v=0zZYBALbZgg (Background on null vs. alternative hypothesis, first 2 min only.)

http://researchbasics.education.uconn.edu/anova_regression_and_chi-square/ (Explains the different types of statistical tests and when each should be used. Your experiment should be designed so that either ANOVA, Regression, or Chi-Squared is appropriate to test your null hypothesis.)

https://www.ischool.utexas.edu/~wyllys/IRLISMaterials/excelnotes.html (How to use Excel for statistical analysis.)

https://www.youtube.com/watch?v=vFcxExzLfZI (How to calculate r and p-value for correlation in Excel.)

https://www.youtube.com/watch?v=leHOBf_-9kM (How to calculate p-Value for one-way ANOVA with multiple groups.)

https://www.youtube.com/watch?v=hPG8IvKMXoc (How to calculate two-way ANOVA (if you have multiple independent variables multiple variables.)

http://www.dummies.com/education/math/statistics/what-a-p-value-tells-you-about-statistical-data/ (A little more about p-values and what they indicate regarding the null hypothesis.)