Please assist to solve the quetion below: The average wage of data analysts in X Company is $51 per hour with a standard deviation of $21. Suppose we randomly select 36 people, and compute the sample mean. (a) The distribution of sample means is centred at $? and has a standard error of $ ? (b) The probability that the sample mean for these 36 people is less than $48.9 is (c) The probability that the sample mean for these 36 people is more than $56.25 is   Thanks.

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