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A researcher wants to compare if the cholesterol level of people who had heart attack is higher than those people who haven’t had heart attack. a random of 10 sample cholesterol level of patients who had heart attack were measured two days after the attack. also, 15 cholesterol level of healthy adults who show no signs of heart disease have been measure
d. data are recorded in the table below. assuming the data is normal, test that the cholesterol level of patients with heart attack is equal to the healthy individuals at 1% level of significanc
e.
Sagot :
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