Consider the Wage data with wage a function of age. We want to compare fitting cubic splines with different numbers of knots and the bs( ) option. In the 3-knot model we use the knots 25, 50 and 60, and in the 4-knot model we use the knots 25, 35, 45 and 55. Which of the following statements is not true for these models? The residual standard errors of both models are very similar, but the degrees of freedom differ. The number of basis functions of the two models is the same. The estimated curve obtained from the 4-knot model has a smaller value at age = 80 than the estimated curve obtained from the 3-knot model. The first coefficient estimate (and not counting the intercept) is larger for the 4-knot model than for the 3-knot model