A Research Firm Reported That 15% of Those Surveyed Described

Essay

A research firm reported that 15% of those surveyed described their health as poor, 26% as good, 40% as
very good, and 19% as excellent. A health professional in Halifax wants to determine if people in Halifax
have similar feelings toward their health. In a sample of 610 people in Halifax, 70 described their health
as poor, 180 as good, 220 as very good, and 140 as excellent. Plot the observed and expected values and
calculate the test value.