6. The Québec (Canada) Cardiovascular Study recruited men aged 34 to 64 at rando

Question

6. The Québec (Canada) Cardiovascular Study recruited men aged 34 to 64 at random from towns in the Québec City metropolitan area. Of these, 1824 met the criteria (no diabetes, free of heart disease, and so on) for a study of the relationship between being overweight and medical risks. The 719 normal-weight men had mean triglyceride level 1.5 millimoles per liter (mmol/l); the 885 overweight men had mean 1.7 mmol/l; and the 220 obese men had mean 1.9 mmol/l. eBook Step 1: Identify the populations and the response variable. O The populations are all the men from Quebec aged 34-64 and the variable is their weight. O The populations are all the men from Quebec aged 34-64 and the variable is their age. O The populations are normal weight men aged 34-64 from Quebec, overweight and obese men from the same age and area. The variable is their triglyceride level. O The populations are normal weight men aged 34-64 from Quebec, overweight and obese men from the same age and area. The variable is their weight. Step 2: What is the value of k?

Explanation / Answer

step 1: the population are all normal weight.................the variable is their triglyceride level

step 2: k=number of treatements =3

step 3: n1=719 ; n2 =885 ; n3 =220

step 4:N =1824

step 5: numerator degree of freedom =k-1=3-1=2

step 5) denominator degree of freedom =N-k=1824-3 =1821

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