In their advertisements, the manufacturers of a diet pill, Loseitnow, would like to claim that "taken daily, Loseitnow will produce a mean weight loss of more than 10 pounds in two months." (Data on their strongest competitor, Fatnomore, shows that its average weight lose is 10 pounds in two months.) In order to determine if it is valid for the Loseitnow manufacturers to claim an average weight loss of more than 10 pounds, they hire an independent research agency, which then selects 30 overweight people to take the pill daily for two months