In one U.S. study of long-lasting marriages, what percentage of the partners surveyed thought their relationship was about equal in give-and-take?

Approximately what percent of anorexic individuals are female?

A) 35 B) 55 C) 75 D) 95

With the t test, as the number of decisions to reject Ho increases, so too

a. does the number of degrees of freedom b. does the sampling error c. does alpha d. all of these