Consider the e-contamination class in (4.75), and suppose that 1To is a K(O, 2.19) density. How large must e be for the   density to also be in this class? It is desired to investigate the robustness...

Consider the e-contamination class in (4.75), and suppose that 1To is a K(O, 2.19) density. How large must e be for the
  density to also be in this class?

It is desired to investigate the robustness of the analysis in Exercise 40 with respect to the e-contamination class of priors, with
  being the prior described in Exercise
  Find the range of the posterior probability of

H_o:
 = 4.01.