Is it possible to interpret the y-intercept? Explain. (Choose one) ▼ the x-values are all (Choose one) positive negative

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.3: Properties Of Numbers
Problem 57HP
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Is it possible to interpret the y-intercept? Explain.
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 of mercury (mmHg), for a sample of 10 adults. The following table
presents the results. Use a TI-84 calculator to answer the following.
Systolic
Diastolic
Systolic
Diastolic
134
87
118
88
115
83
130
76
113
77
116
70
123
77
133
91
119
69
112
75
Based on results published in the Journal of Human Hypertension
Send data to Excel
Part 1 of 4
Compute the least-squares regression line for predicting the diastolic pressure from the systolic pressure. Round the slope
and y-intercept to at least four decimal places.
°Regression line equation: y = 23.7591 + 0.4579x
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 of mercury (mmHg), for a sample of 10 adults. The following table presents the results. Use a TI-84 calculator to answer the following. Systolic Diastolic Systolic Diastolic 134 87 118 88 115 83 130 76 113 77 116 70 123 77 133 91 119 69 112 75 Based on results published in the Journal of Human Hypertension Send data to Excel Part 1 of 4 Compute the least-squares regression line for predicting the diastolic pressure from the systolic pressure. Round the slope and y-intercept to at least four decimal places. °Regression line equation: y = 23.7591 + 0.4579x
Is it possible to interpret the y-intercept? Explain.
(Choose one) ▼
the x-values are all (Choose one) ▼
Yes
No
Is it possible to interpret the y-intercept? Explain.
(Choose one) ▼
the x-values are all (Choose one) v
positive
negative
Transcribed Image Text:Is it possible to interpret the y-intercept? Explain. (Choose one) ▼ the x-values are all (Choose one) ▼ Yes No Is it possible to interpret the y-intercept? Explain. (Choose one) ▼ the x-values are all (Choose one) v positive negative
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