Listed below are systolic blood pressure measurements in mm

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: 103 102 95 79 80 Left Arm: 176 171 142 141 143

1.) The regression equation is y= _+_x

2.)Given that the systolic blood pressure in the right arm is 85mm Hg, the best predicted systolic blood pressure in the left arm is _ mm hg

Solution

1)

Using technology, we get              
              
slope =    1.248341931          
intercept =    40.00221076          
              
Thus, the regression line is              
              
y^ =    40.00221076 + 1.248341931 x [ANSWER]

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2)
              
Thus, if x =    85          
              
Then              
              
y^ =    146.1112749   [ANSWER, BEST PREDICTED PRESSURE]