Question

An observational study is conducted to investigate the association between age and total serum cholesterol. The

correlation is estimated at r=0.35. The study involves n=125 participants and the mean (std dev) age is 44.3 (10.0) years with an age range of 35-55 years, and mean (std dev) total cholesterol is 202.8 (38.4). The regression equation is below: Y= 143.4+1.34x

Estimate the total serum cholesterol for a 50 year old person

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