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 Chicago wanted to determine if people in Chicago had similar feelings toward their health.
In a sample of 610 people in Chicago, 70 described their health as poor, 180 as good, 220 as very good, and 140 as excellent. Compute the test value. (answer to 2 decimal places)