# Considering only the data for coronary heart disease (CHD) in Table 10.1 and assuming that blood pressure levels and cholesterol levels are both in increasing orders, use an appropriate test to decide if there is evidence of an association between blood pressure and cholesterol levels. If you were told also that the blood pressure levels were I = normal or below normal, II = between 1 and 10 per cent above normal, III = 11 to 20 per cent above normal, IV = 21-50 per cent above normal and V = more than 50 per cent above normal and that the cholesterol levels are A = normal or less, B = up to

Considering only the data for coronary heart disease (CHD) in Table 10.1 and assuming that blood pressure levels and cholesterol levels are both in increasing orders, use an appropriate test to decide if there is evidence of an association between blood pressure and cholesterol levels. If you were told also that the blood pressure levels were I = normal or below normal, II = between 1 and 10 per cent above normal, III = 11 to 20 per cent above normal, IV = 21-50 per cent above normal and V = more than 50 per cent above normal and that the cholesterol levels are A = normal or less, B = up to