Question: The data set gives the weight (in lbs) and levels of LDL cholesterol (in mg/dl) measurements collected from 30 men as part of their annual physicals. A value of <130 mg/dl would be considered normal. None of these men had previously been assessed for heart disease. You may assume that the data are normally distributed.

a) Produce a scatter plot and comment on the relationship between weight and levels of cholesterol?

b) Determine if there is any evidence of a relationship between weight and cholesterol levels of men. Assume all assumptions are met. Please use the appropriate hypotheses tests. Based on your results what would you conclude clinically from this set of data and what would you tell patients?

c) What is the coefficient of determination for this data, and what does this tell us?