I'm looking at this quote: "The proportions of the phyla Firmicutes and Bacteroidetes were statistically significantly increased in the obese group compared to the normal weight group (p< 0.001, p = 0.003 respectively)." Since I don't know statistics can you please explain how to visualize these results? The difference between the numbers looks so small, 0.001 and 0.003. How can it be significant? Thanks.