Question

A food manufacturer is reformulating their pasta sauce. The new recipe has less salt but includes additional basil. A market research company recruited 300 volunteers for a taste test. Each volunteer was asked to taste both recipes and provide a rating out of 10 for its taste. The original recipe scored an average rating of 7.21 with a standard deviation of 1.22 and the new recipie scored an average of 7.42 with a standard deviation of 2.01. Is there evidence to suggest that the new recipe tastes better than the original recipe?

Answer 1