Value of $\lambda$

Estimated measure

Standard error

Confidence interval

−0.5

0.222

0.014

(0.195, 0.248)

0

0.338

0.019

(0.301, 0.374)

1.0

0.421

0.021

(0.381, 0.461)

1.5

0.427

0.021

(0.386, 0.467)