Which of the following sets of data provides the clearest difference between the two samples?a. One sample has M = 20 with s2 = 10 and the other has M = 30 with s2 = 10b. One sample has M = 20 with s2...

Which of the following sets of data provides the clearest difference between the two samples?a. One sample has M = 20 with s2 = 10 and the other has M = 30 with s2 = 10b. One sample has M = 20 with s2 = 5 and the other has M = 30 with s2 = 5c. One sample has M = 20 with s2 = 5 and the other has M = ...