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QUESTION

# An exhaustive study of all active Facebook accounts was recently conducted by Facebook. One variable Facebook recorded was the number of friends X of...

An exhaustive study of all active Facebook accounts was recently conducted by Facebook. One variable Facebook recorded was the number of friends X of each Facebook user. Suppose X has expected value E(X) = 193 and standard deviation SD(X) = 284. Since the possible values of X are only integers and since the distribution of X is highly skewed to the right, the distribution of Xcannot be described by a normal model. Suppose you select a random sample of 34 Facebook users and record the number of Facebook friends each user has.

Question 1. What is the probability that the 34 Facebook users in your sample have a sample mean number of friends x greater than 181?  (use 4 decimal places in your answer)

Question 2. What is the probability that the 34 Facebook users in your sample have a sample mean number of friends x less than 193? (use 4 decimal places in your answer)