In addition to the qualitative variable, use of ethics consultation in the future ("yes" or "no"), one of the quantitative variables measured in the survey of physicians was length of time in practice (i.e., years of experience). Recall that the medical researchers hypothesized that physicians who refused to use ethics consultation in the future would tend to be older, more experienced physicians.
a. Access the data file and find the mean, median, and mode for the length of time in practice (i.e., years of experience) variable. Give a practical interpretation of each of these measures of central tendency.
b. Consider only the physicians who would refuse to use ethics consultation in the future. Find the mean, median, and mode for the length of time in practice for these physicians. Practically interpret the results.
c. Repeat part b for physicians who would use ethics consultation in the future.
d. Use the results, parts b and c, to comment on the medical researchers' theory.