Question: Question 3 (10 marks) Let x_(1),x_(2),dots,x_(n) form a random sample of size n from some probability distribution with mean mu and variance sigma ^(2) .
Question 3 (10 marks)\ Let
x_(1),x_(2),dots,x_(n)form a random sample of size
nfrom some probability distribution with mean\
\\\\mu and variance
\\\\sigma ^(2). If
nis greater than 60 ,\ (a) What is the distribution of sample mean? Explain.\ (b) Compute the probability that the sample mean is exactly 2.\ (c) Compute the probability that the sample mean is within
\\\\mu +-1.6\\\\sigma _(\\\\bar{x} ).

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