1. Consider the following data collected regarding infant blood pressure, age, and birth weight: Age in days (x2) 135 3 120 4 100 3 105 2 77 130 4 92 125 5 98 7 125 2 82 m 8 105 3 85 120 5 96 90 4 95 120 2 80 95 3 79 120 3 86 150 4 160 3 125 3 i 1 2 3 4 5 6 9 10 11 12 13 14 15 16 Birth weight in oz. (x1) Systolic Blood Pressure mmHg (y) 89 90 83 97 92 88 a. Fit a model to predict SBP from birth weight and Age. Present the equation the least-squares regression line. b. Interpret the beta coefficients for Birth weight and Age. c. Are Birth weight and/or Age significantly associated with SBP at the alpha = 0.05 level?
1. Consider the following data collected regarding infant blood pressure, age, and birth weight: Age in days (x2) 135 3 120 4 100 3 105 2 77 130 4 92 125 5 98 7 125 2 82 m 8 105 3 85 120 5 96 90 4 95 120 2 80 95 3 79 120 3 86 150 4 160 3 125 3 i 1 2 3 4 5 6 9 10 11 12 13 14 15 16 Birth weight in oz. (x1) Systolic Blood Pressure mmHg (y) 89 90 83 97 92 88 a. Fit a model to predict SBP from birth weight and Age. Present the equation the least-squares regression line. b. Interpret the beta coefficients for Birth weight and Age. c. Are Birth weight and/or Age significantly associated with SBP at the alpha = 0.05 level?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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Transcribed Image Text:1. Consider the following data collected regarding infant blood pressure, age, and
birth weight:
i
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Birth weight in
oz. (x1)
135
120
100
105
130
125
125
105
120
90
120
95
120
150
160
125
Age in
days (x2)
3
4
3
2
4
5
2
3
5
4
2
3
3
4
3
3
Systolic Blood Pressure
mmHg (y)
89
90
83
77
92
98
82
85
96
95
80
79
86
97
92
88
a. Fit a model to predict SBP from birth weight and Age. Present the
equation of the least-squares regression line.
b. Interpret the beta coefficients for Birth weight and Age.
c. Are Birth weight and/or Age significantly associated with SBP at the alpha
= 0.05 level?
d. Interpret the corresponding 95% confidence intervals for both Birth weight
and Age.
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