Krusty was told that a certain itching powder was the newest best thing on the market, it even claims to cause 50% longer lasting itches. Interested in this
product, he buys the itching powder and compares it to his usual product. One test
subject (A) is sprinkled with the original itching powder, and another test subject (B)
was sprinkled with the Experimental itching powder. Subject A reported having
itches for 30 minutes. Subject B reported to have itches for 45 minutes.