In a study to investigate the extent to which individuals are aware of industrial odors in a certain region

(“Annoyance and Health Reactions to Odor from Refineries and Other Industries in Carson, California,”

Environmental Research, 1978: 119–132), a sample of a 5 .05

(P , .015)

individuals was obtained from each of three different areas near industrial facilities. Each individual was asked whether he or she noticed odors (1) every day, (2) at least once/week, (3) at least once/month, (4) less often than once/month, or (5) not at all, resulting in the data and SPSS output at the top of the next page. State and test the appropriate hypotheses.