Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters, for a sample of 8 adults. The following table presents the results. The least-squares regression line y =b₁ +b₁x= for the slope. Round the answers to at least four decimal places. The 99% confidence interval is

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Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is
contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters,
for a sample of 8 adults. The following table presents the results.
The 99% confidence interval is <B₁ <
Systolic
134
115
113
123
119
118
130
116
X
Diastolic
87
83
77
77
69
88
76
The least-squares regression line y = b + b₁ x = 46.5816+0.2628x and Σ (x-x)² = 392.0000 are known for these data. Construct a 99% confidence interval
for the slope. Round the answers to at least four decimal places.
70
Send data to Excel
S
Transcribed Image Text:Blood pressure: A blood pressure measurement consists of two numbers: the systolic pressure, which is the maximum pressure taken when the heart is contracting, and the diastolic pressure, which is the minimum pressure taken at the beginning of the heartbeat. Blood pressures were measured, in millimeters, for a sample of 8 adults. The following table presents the results. The 99% confidence interval is <B₁ < Systolic 134 115 113 123 119 118 130 116 X Diastolic 87 83 77 77 69 88 76 The least-squares regression line y = b + b₁ x = 46.5816+0.2628x and Σ (x-x)² = 392.0000 are known for these data. Construct a 99% confidence interval for the slope. Round the answers to at least four decimal places. 70 Send data to Excel S
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