The weight and systolic blood pressure of 26 randomly selected males in the age group 25 to 30 are shown in the table below. Assume that the weight and blood pressure are jointly normally distributed Subject 1 Systolic BP Subject Weight Weight 165 Systolic BP 130 14 172 153 2 167 133 15 159 128 3 180 150 16 168 132 4 155 128 17 174 149 5 212 151 18 183 158 6 175 146 19 215 150 7 190 150 20 195 163 8 210 140 21 180 156 9 200 148 22 143 124 10 149 125 23 240 170 11 158 133 24 235 165 12 169 135 25 192 160 13 170 150 26 187 159 a. Find a regression line relating systolic blood pressure to weight b. Test for significance of regression using a = 0.05 c. Estimate the correlation coefficient O a.y = 5.50 +6.73x Regression model is significant r=0.77349 Regression model is not significant r=0.5982 O c.y = 69.104 +0.419x Regression model is significant r=0.77349 O d.y = 69.104 + 0.419x Regression model is not significant r=0.77349 O e.y = -25.294 +1.426x Regression model is significant r=0.77349 O b.y = 69.104 +0.419x
The weight and systolic blood pressure of 26 randomly selected males in the age group 25 to 30 are shown in the table below. Assume that the weight and blood pressure are jointly normally distributed Subject 1 Systolic BP Subject Weight Weight 165 Systolic BP 130 14 172 153 2 167 133 15 159 128 3 180 150 16 168 132 4 155 128 17 174 149 5 212 151 18 183 158 6 175 146 19 215 150 7 190 150 20 195 163 8 210 140 21 180 156 9 200 148 22 143 124 10 149 125 23 240 170 11 158 133 24 235 165 12 169 135 25 192 160 13 170 150 26 187 159 a. Find a regression line relating systolic blood pressure to weight b. Test for significance of regression using a = 0.05 c. Estimate the correlation coefficient O a.y = 5.50 +6.73x Regression model is significant r=0.77349 Regression model is not significant r=0.5982 O c.y = 69.104 +0.419x Regression model is significant r=0.77349 O d.y = 69.104 + 0.419x Regression model is not significant r=0.77349 O e.y = -25.294 +1.426x Regression model is significant r=0.77349 O b.y = 69.104 +0.419x
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 4SGR
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