e. What is the predicted average SBP of an infant born with birth weight 8lbs (1280z) measured at 3 days old? f. Calculate the Pearson correlation between Age and Birth weight, and test if this correlation is significant at the 0.05 level. Does this answer surprise you, why or why not?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

I only need d,e, and f answered! I just included the rest to give full context. 

e. What is the predicted average SBP of an infant born with birth weight 8lbs
(1280z) measured at 3 days old?
f. Calculate the Pearson correlation between Age and Birth weight, and test
if this correlation is significant at the 0.05 level. Does this answer surprise
you, why or why not?
Transcribed Image Text:e. What is the predicted average SBP of an infant born with birth weight 8lbs (1280z) measured at 3 days old? f. Calculate the Pearson correlation between Age and Birth weight, and test if this correlation is significant at the 0.05 level. Does this answer surprise you, why or why not?
1. Consider the following data collected regarding infant blood pressure, age, and
birth weight:
i
Birth weight in Age in Systolic Blood Pressure
oz. (x1) days (x2)
mmHg (y)
135
3
120
4
89
90
83
77
3
100
4
105
5
130
6
125
T
7
125
2
8
105
9
120
92
98
82
85
96
95
80
79
86
97
10
90
11
120
95
120
150
160
92
88
125
3
1
2
12 13 14 15 16
34
3245 354
233
433
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.
Transcribed Image Text:1. Consider the following data collected regarding infant blood pressure, age, and birth weight: i Birth weight in Age in Systolic Blood Pressure oz. (x1) days (x2) mmHg (y) 135 3 120 4 89 90 83 77 3 100 4 105 5 130 6 125 T 7 125 2 8 105 9 120 92 98 82 85 96 95 80 79 86 97 10 90 11 120 95 120 150 160 92 88 125 3 1 2 12 13 14 15 16 34 3245 354 233 433 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.
Expert Solution
steps

Step by step

Solved in 3 steps with 6 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman