For each of the accompanying studies, decide whether the null hypothesis that the groups come from identical populations can be rejected. Use the 0.05 level Determine the null and research hypotheses for the data in table (a). Choose the correct answer below. A. The null hypothesis is that these populations have the same mean (mu Subscript 1equals=mu Subscript 2equals=mu Subscript 3). The research hypothesis is that the population means are not the same. B. The null hypothesis is that the population means are not the same. The research hypothesis is that at least two of these populations have the same mean. C. The null hypothesis is that at least two of these populations have the same mean. The research hypothesis is that the population means are not the same. D. The null hypothesis is that the population means are not the same. The research hypothesis is that these populations have the same mean (mu Subscript 1equals=mu Subscript 2equals=mu Subscript 3)