Agroup of veterinary researchers plan a study to estimate the average number of enteroliths in horses suffering from them. previously research has shown the variability in the number to be σ = 2. the researchers wish the margin of error to be no larger than 0.5 for a 99% confidence interval. to obtain such a margin of error the researchers need at least:

eggs are a high protein food! dan is most likely to include them in his diet. according to my sources, "whole eggs are among the healthiest and most nutritious foods on the planet. they are loaded with vitamins, minerals, healthy fats, eye-protecting antioxidants and brain nutrients that most people don't get enough of. whole eggs are high in protein, but egg whites are almost pure protein."