Below is the least squares regression output for tree #2.
Simple linear regression results:
Dependent Variable: Ψ leaf water potential
Independent Variable: sap flow velocity
Ψ leaf water potential =-0.345-0.0552 p flow velocity
Sample size: 6

For a tree with sap flow velocity of 20, what would be the predicted leaf water potential?
A. 1.449
B. -1.442
C. -0.759
D. 0.759