Question

Listed below are systolic blood pressure measurements​ (in mm​ Hg) obtained from the same woman. Find the regression​ equation, letting the right arm blood pressure be the predictor​ (x) variable. Find the best predicted systolic blood pressure in the left arm given that the systolic blood pressure in the right arm is 85 mm Hg. Use a significance level of 0.05. Right Arm 101 100 92 77 76 Left Arm 174 168 142 141 143 LOADING... Click the icon to view the critical values of the Pearson correlation coefficient r The regression equation is ModifyingAbove y with caretequals nothingplus nothingx. ​(Round to one decimal place as​ needed.) Given that the systolic blood pressure in the right arm is 85 mm​ Hg, the best predicted systolic blood pressure in the left arm is nothing mm Hg. ​(Round to one decimal place as​ needed.)

Answer 1

The statistical software output for this problem is:

Hence,

a) Regression equation:

= 53.7 + 1.1 x

b) Since the p - value is greater than 0.05, regression equation is not significant for prediction. Hence,

Best predicted systolic blood pressure = Mean of y values = (174 + 168 + 142 + 141 + 143)/5 = 153.6