A researcher collected data from N = 182 Master of Science in Nursing (MSN) students. The following page contains a basic SPSS output for the frequencies and descriptive statistics for four (4) demographic variables (age, GPA, gender, and ethnicity). Based on these analyses, answer questions a) and b) below. a) Describe any biases which may exist in the demographic data, as collected, that would limit the generalizability of the results. What is present that is typical, what would you change, and overall, are there any issues you would improve upon to further illuminate the demographic characteristics of the sample? (8pts) b) If you were to have questions about the differences in scores between members of various ethnic groups, what statistical test would be most appropriate to use to assess differences in proportions of individuals among different ethnic groups? (2pts)