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 Systolic BP Subject Weight Systolic BP Weight 165 1 130 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 10 149 125 170 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 significant O b.y = -25.294 +1.426x
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 Systolic BP Subject Weight Systolic BP Weight 165 1 130 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 10 149 125 170 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 significant O b.y = -25.294 +1.426x
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Transcribed Image Text: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
Systolic BP Subject Weight Systolic BP
Subject
1
Weight
165
130
14
172
153
2
167
133
159
3
180
150
168
4
155
128
174
5
212
151
183
6
175
146
215
7
190
150
195
8
210
140
180
9
200
148
143
149
125
240
158
133
235
169
135
192
13
170
150
187
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
O b.y = -25.294 + 1.426x
Regression model is significant
r=0.77349
Regression model is significant
r=0.77349
Regression model is not significant
r = 0.77349
O e.y = 69.104 + 0.419x
Regression model is not significant
r = 0.5982
2123
10
11
O c.y = 69.104 + 0.419x
O d.y = 69.104 + 0.419x
561898NNINGS
17
20
21
22
23
24
25
26
128
132
149
158
150
163
156
124
170
165
160
159
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