Suppose that a random sample X1,....Xn is to be taken from a uniform distribution on the interval [0,Q] and that Q is unknown. How large a random sample must be taken in order that

Pr(|max{X1,...,Xn} - Q|<0.1Q)>0.95

for all Q?

(From Degroot and Schervish 7.1 Exercise 1)

How do I get the Ans: 29???