6. The population (2, 3, 5, 7} has mean = 4.25 and standard deviation = 1.92. When sampling with replacement, there are 16 different possible ordered samples of size n = 2 that can be selected from this population. The mean of each of these 16 samples is computed. For example, the mean of the sample {2, 5} is 3.5. The sampling distribution of the means of the 16 samples has its own mean, M (the mean of the means) and its own standard deviation M (the standard error). Which of the following statements is true?

a. HM 4.25 and M=1.92

b. HM 4.25 and M> 1.92

c. HM 4.25 and GM < 1.92

d. HM > 4.25