1.8 Clustering of adverse events. An investigation was prompted when the U.S. Food and Drug Administration received a report of an increased frequency of an adverse drug-related event after a hospital switched from the innovator company's product to a generic product. To address this issue, a team of investigators completed chart reviews of patients who had received the drugs in question. Table 1.4 lists data for the first 25 patients in the study. 1.10 Variable types. Classify each of the measurements listed here as quantitative, ordinal, or categorical. (a) Response to treatment coded as 1= no response, 2 = minor improvement, 3 = major = improvement, 4 complete recovery (b) Annual income (pretax dollars) (c) Body temperature (degrees Celsius) (d) Area of a parcel of land (acres) (e) Population density (people per acre) (f) Political party affiliation coded 1 = Democrat, 2 = Republican, 3 = Independent, 4 = Other 1.12 Rating hospital services. A source ranks hospitals based on each of the following items. (The unit of observation in this study is "hospital.") Identify the measurement scale of each item as quantitative, ordinal, or categorical. (a) Percentage of patients who survive a given surgical procedure. (b) Type of hospital: general, district, specialized, or teaching. (c) Average income of patients that are admitted to the hospital. (d) Mean salary of physicians working at the hospital. 1.14 Physical activity in elementary school children. You are preparing to study physical activity levels in elementary school students. Describe two quantitative variables and two categorical variables that you might wish to measure.