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.
control group?