If MSA is significantly larger than MSE, we conclude that: O a) Ho should be rejected. We can assert that the factor appears to influence the variable in question. ()b) Ho should be accepted. The status quo is maintained. O c) the alternative hypothesis has been definitively proven true. (O d) Ho should not be rejected. We can assert that the factor appears to be inconsequential to the variable in question.In developing a confidence interval estimate for the difference between two population means when the population variances are known, an increase in the size of the samples will result in: O a) a narrower confidence interval. Ob) a smaller z critical value. ( c) a wider confidence interval. (d) the same confidence interval of the same width