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Listed below are systolic blood pressure measurements (in mm Hg) obtained from t

ID: 3225184 • Letter: L

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

80mm Hg. Use a significance level of 0.05

Right Arm

102

101

95

75

75

Left Arm

175

169

149

147

146

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

80mm Hg. Use a significance level of 0.05

Right Arm

102

101

95

75

75

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Left Arm

175

169

149

147

146

Explanation / Answer

The predicted value is 149.10 mmHg

Regression Analysis r² 0.698 n   5 r   0.836 k   1 Std. Error   8.700 Dep. Var. y ANOVA table Source SS   df   MS F p-value Regression 525.7407 1   525.7407 6.95 .0780 Residual 227.0593 3   75.6864 Total 752.8000 4   Regression output confidence interval variables coefficients std. error    t (df=3) p-value 95% lower 95% upper std. coeff. Intercept 81.6364 0.000 x 0.8433 0.3200 2.636 .0780 -0.1750 1.8617 0.836 Predicted values for: y 95% Confidence Interval 95% Prediction Interval x Predicted lower upper lower upper Leverage 80 149.104 133.328 164.880 117.238 180.970 0.325
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