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 Weight Systolic BP Subject 1 Weight Systolic BP Subject 14 165 130 172 153 2 167 133 159 128 180 150 168 132 155 128 174 149 212 151 183 158 175 146 215 150 190 150 195 163 210 140 180 156 9 200 148 143 124 10 149 125 240 170 11 158 133 235 165 12 169 135 192 160 13 170 150 187 159 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= 69.104 + 0.419x 3 4 5 6 7 8 Regression model is not significant r= 0.5982 O b.y = -25.294 +1.426x Regression model is significant r = 0.77349 O c. y = 5.50 +6.73x Regression model is significant r = 0.77349 O d.y=69.104 + 0.419x Regression model is significant r = 0.77349 O e.y = 69.104 +0.419x Regression model is not significant S61K9R522328 17 20 24

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