Consider the following data collected regarding infant blood pressure, age, and birth weight: i Birth weight in oz. (x1) Age in days (x2) Systolic Blood Pressure mmHg (y) 1 135 3 89
1. Consider the following data collected regarding infant blood pressure, age, and
birth weight:
i
Birth weight in
oz. (x1)
Age in
days (x2)
Systolic Blood Pressure
mmHg (y)
1 135 3 89
2 120 4 90
3 100 3 83
4 105 2 77
5 130 4 92
6 125 5 98
7 125 2 82
8 105 3 85
9 120 5 96
10 90 4 95
11 120 2 80
12 95 3 79
13 120 3 86
14 150 4 97
15 160 3 92
16 125 3 88
d. Interpret the corresponding 95% confidence intervals for both Birth weight
and Age.
e. What is the predicted average SBP of an infant born with birth weight 8lbs
(128oz) measured at 3 days old?
f. Calculate the Pearson
if this correlation is significant at the 0.05 level. Does this answer surprise
you, why or why not?
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