Posted by **zwesko** on Wednesday, November 23, 2011 at 11:17am.

Let X be the average of a sample of size 25 independent normal random variables with mean

0 and variance 1. P[[X<c]=0.5

(a) Determine c such that

(b) Now assume that the observations may not be normally distributed, but they still are

independent with mean 0 and variance 1. Find an upper bound on the probability that P[[X<c]

with c taken from the first part of the question.

- statistics -
**Anonymous**, Sunday, September 7, 2014 at 9:58pm
oj

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