The makers of Toblerone Swiss chocolate have widened the spaces in some of their iconic, triangle array bars, offering about 10% less product for the same price. They are trying to forecast how this change may affect how consumers perceive the chocolates, that can in turn impact on sales.

Question:

a). Using the concept of just noticeable difference, explain to the makers of Toblerone how this change in the chocolate bar may change consumers perceptions of the product.