Consider the three approaches to conducting hypothesis tests under the maximum likelihood framework. i'ii'hich of the following statements are true? (i) (ii) The Wald test is based on estimation only under the null hypothesis. The likelihood ratio test is based on estimation under both the null and the alternative hypotheses. The Lagrange multiplier test is based on estimation under the alternative hypothesis only. The usual t and Ftests are examples of W'ald tests. (ii) and [iv]: only. (i) and {iii} only. (i), (m, and (iv) only. (i), (ii), (iii), and (Ni