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  3. 3d estimate with 90 confidence the true mean difference in...

Question: 3d estimate with 90 confidence the true mean difference in...

Question details

3d)

Estimate, with 90% confidence, the true mean difference in initial systolic blood pressure (BPXSY1) between those people reducing fat in their diet and those who aren’t.

 Ensure you explain the confidence interval in context of the problem.

 

BPXSY1:

 

122
156
140
136
160
118
102
128
140
106
124
122
118
120
124
138
96
106
124
118
118
146
128
88
114
144
118
116
120
128
130
108
138
126
106
102
134
148
120
106
160
116
108
162
112
142
122
138
120
138
106
132
134
124
112
176
126
130
118
138
108
150
112
112
196
104
132
130
112
108
144
138
146
118
98
130
118
106
132
116
118
128
168
136
174
124
114
92
128
100
116
158
100
138
126
114
168
114
104
104
118
166
134
132
92
150
126
116
150
148
120
114
160
108
116
110
130
126
118
118
144
120
198
108
116
130
118
98
120
110
106
136
100
126
120
104
92
132
104
140
114
150
118
106
96
122
108
90
148
138
148
116
124
110
106
108
120
130
114
146
138
116
144
106
138
142
120
82
120
122
126
114
164
96
112
102
136
120
156
118
140
110
138
118
118
110
108
118
120
116
126
150
154
150
128
108
122
128
76
112
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