7. A study by Jackman-Cram, Dobson, and Martin (2006) investigated the communication behavior of married couples during problem-solving discussions. The researchers first classified participant couples according to their level of marital distress (distressed or nondistressed). They then classified the couples on the basis of whether one of the spouses was suffering from depression (depressed or nondepressed). All couples were videotaped during problem-solving, and all videotapes were then coded by the researchers using the Marital Interaction Coding System. Among the dependent measures was the proportion of communications that were "facilitative" in nature. The following fictional data reproduce the pattern of results obtained for the female partners in the original research. Distressed, depressed: 0.45, 0.15, 0.22, 0.30, 0.25 Nondistressed, depressed: 0.60, 0.32, 0.49, 0.39, 0.41 Distressed, nondepressed: 0.31, 0.18, 0.42, 0.20, 0.17 Nondistressed, nondepressed: 0.52, 0.45, 0.61, 0.36, 0.42 (a) Conduct all steps hypothesis testing for this set of data