= LyDUUKb IE LyDUUKS U'delUg u Help/ FAQ U Dldllkd lldl I If I IUIIU V 2.3: Least squares method CHALLENGE _ ACTIVITY 2.3.3. Excel. Resrduals. U Click this link to download the spreadsheet for use in this activity. Jump to level 1 The systolic blood pressure dataset (in the third sheet of the spreadsheet linked above) contains the systolic blood pressure and age of 30 randomly selected patients in a medical facility. What is the equation for the least square regression line where the independent or predictor variable is age and the dependent or response variable is systolic blood pressure? ,7} = ' 3 33+ ' 3 Patient 29 is 25 years old and has a systolic blood pressure of 125 mm Hg, What is the residual? 3 mm Hg Is the actual value above, below, or on the line? Below What is the interpretation of the residual? ~ i Difference in actual and predicted blood pressures for a given age Difference in age between random people in the sample The amount systolic blood pressure changes as age increases 1