Question

A doctor wanted to determine whether a relation exists between a male’s age and his HDL (so-called good) cholesterol. He randomly selected 17 of his patients and determined their HDL cholesterol levels. He obtained the following data.
(a) Draw a scatter diagram of the data treating age as the explanatory variable. What type of relation, if any, appears to exist between age and HDL cholesterol?
(b) Compute the linear correlation coefficient between age and HDL cholesterol.
(c) Does a linear relation exist between age and HDL cholesterol?


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  • CreatedApril 27, 2015
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