https://1drv.ms/x/s!AlDaGfrq48a7g1zIJddOQhscYxu9?e=MTCJ6J

Using the heartsubset.jmp dataset that represents a sample of 606 patients who have undergone provider care for cardiovascular disease. A normal total cholesterol level for adults without heart disease is less than 200 mg/dL.

It is believed that cholesterol level is not significantly related to heart disease. If this is true, then the proportion of cardiovascular patients with desirable cholesterol levels would be around 50%. Get your marginal frequencies using Excel; then, by hand, conduct a 95% hypothesis test concerning this claim.