The
growth of children from early childhood through adolescence generally follows
a linear pattern. Data on the heights of female Americans during childhood,
from four to nine years old, were compiled and the least squares regression
line was obtained as y = 32 + 2.4 x where y is the predicted height
in centimeters, and x is age in years.
Let's Do It! 7.6
FEEDBACK
Interpret the value of the estimated slope b = 2.4.
Would interpretation of the value of the estimated
y-intercept, a = 32, make sense here?
What would you predict the height to be for a female
American at 8 years old?
What would you predict the height to be for a female
American at 25 years old? How does the quality of this answer compare to the
previous question?