Question: One-Koat Paint Company has developed a new type of porch paint that it hopes will be the most durable on the market. The R&D group tests the new product against the two leading competing products by using a machine that scrubs until it wears through the coating. One-Koat runs five trials with each product and secures the following results (in thousands of scrubs):
Test the hypothesis that there are no differences between the means of these products (a = .05).