Report from a testing laboratory claims that, for these species of fish, the average LC50 measurement is 6 ppm. For certain species of fish, the LC50 measurements (in parts per million) for DDT in 12 experiments were as follows: 16, 5, 21, 19, 10, 5, 8, 2, 7, 2, 4, 9 Use the data to determine whether sufficient evidence exists to indicate that the average LC50 measurement is less than 6 ppm. Use α = .01.