random sample is selected from a population with u = 80 and o = 20. Which of the following samples would have an expected value of M equal to 80? Answer \\ A sample of n = 4 scores. A sample of n = 16 scores. A sample of n = 64 scores. All of the samples would have an expected value of 80. . Solution All of the samples would have an expected value of 80 because E(Xbar)==80.