SOLUTION: Assume that a school district has 10,000 class 6. In this district, the average weight of six students is 40kgs, with a standard deviation of 10kgs. Suppose you draw a random sampl
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Question 1183484: Assume that a school district has 10,000 class 6. In this district, the average weight of six students is 40kgs, with a standard deviation of 10kgs. Suppose you draw a random sample of 50 students. What is the probability that the average weight of a sampled will be less than 35kgs?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(x bar-mean)/sigma/sqrt(n)
=(35-40)/10/sqrt(50)
=-5*sqrt(50)/10
=-3.53
probability z < -3.53 is 0.0002
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