The following data relate x (number of days since inoculation),
to y, the size of a colony of bacteria in a culture medium
x 3
6
9
12
15 18
y 115 147
239
356
579
864
a) Fit a linear regression model to these data
b) Give the least-squares coefficients
b0 = _________ ; b1 = _________
c) R2 = _________ ; R2adj =
_________