A researcher is interested in comparing tastiness of the different sorts of cheese in grilled cheese sandwiches. The researcher anticipates that Cheddar cheese grilled sandwiches are rated tastier than Swiss cheese grilled sandwiches. This researcher wants to employ an in subjects design. Each participant tastes both Cheddar as well as Swiss cheese grilled sandwiches. Except for types of cheese employed in the grilled sandwiches, there is no dissimilarity between the two kinds of sandwiches. Participants indicate the degree of tastiness on a 10-point scale and ratings appear in the following table. Tastiness scores tend to be skewed.