Answer Happy

*10) The following in a survey of people who went to a physician who were asked what their weight was and what their LDL cholesterol level was Weight (in Pounds) Cholesterol (in LDL points) 150 60 50 200 120 70 +5 300 30 100 25 a) Does there appear to be a lincar correlation between weight and cholesterol? Why or why not? You may use the following statistics if you wish, where x = weight, and y = cholesterol 1 - 181.67.5, -73.87.7 = 46, 67,5 = 17.22 point) b) If you remove the person who weighs 100 pound from the survey, the summary statistics for the remaining five participants in * = 198, s = 69.42.5 = 51.5, = 15. 17. = - 0.99487059 Does this person who weighs 100 pounds appear to be an influential participant in the linear correlation between weight and cholesterol? Explain why or why not (1 point) c) Use the first five participants (everyone but the 100 pound person to find the linear regression model that will predict someone's HDL cholesterol level given their weight in pounds. You may use the summary statistics from pareb) (2 points) d) Use the model from parte) to approximate the HDL cholesterol level of a person who weighs 180 pounds. (1 point) c) Find the residual of the 300 pound person from the survey from the linear regression line from partc). Does your model overestimate or underestimate the cholesterol of this 300 pound person? (1 point)