A developmental psychologist has randomly assigned men to two different groups. After sitting alone at a computer monitor to read a series of stories, each man is asked to rate his level of acceptance of gender typing. (Gender- typed people believe that there are certain roles men should fulfill and certain roles women should fulfill.) Higher scores on the scale indicate higher levels of gender typing; scores on the scale are normally distributed. One group of men, the control group, read gender-typed stories and the other group, the experimental group, read non-gender-typed stories. The researcher found M_C = 75, s_C = 35, M_E = 55, s_E = 8. The psychologist is planning to use an independent-samples t test to see if the experimental manipulation has had an impact. Check the assumptions and decide if it is OK to proceed with the planned test.