Solution Found!
Age versus HDL Cholesterol A doctor wanted to determine
Chapter 7, Problem 32AYU(choose chapter or problem)
Age versus HDL Cholesterol 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.
Data based on information obtained from the National Center for Health Statistics
(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?
Questions & Answers
QUESTION:
Age versus HDL Cholesterol 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.
Data based on information obtained from the National Center for Health Statistics
(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?
ANSWER:
Step 1 of 5
a)
Here we have to draw a scatter diagram of the data treating age as the explanatory variable.
We have drawn the scatter plot using excel.