co. An article in the Journal of Sound and Vibration (Vol. 151, 1091. pp. 383-394) described a study investigating the relation- ship between noise exposure and hypertension. The following data are representative of those reported in the article. 1 0 2 5 4 6 2 3 60 63 65 70 70 70 80 90 80 80 4 6 8 4 5 7 9 7 6 | 85 89 90 90 90 90 94 100 100 100 (2) Draw a scatter diagram of y (blood pressure rise in mil- limeters of mercury) versus x (sound pressure level in decibels). Does a simple linear regression model seem reasonable in this situation? (b) Fit the simple linear regression model using least squares. Find an estimate of of. (c) Find the predicted mean rise in blood pressure level associated with a sound pressure level of 85 decibels