Question 1177652
The SEM is s/sqrt(n)=0.025/sqrt(25)=0.005 liters. It is the sd/sqrt(n)
The sampling error is 1.96*0.005 liters or 0.0098 liters, assuming one wants to be 95% confident. The sampling error depends upon the degree of confidence; the SEM is fixed.
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z > (xbar-mean)/sigma/sqrt(n)=-0.005*5/0.025=-1, and z > -1  is 0.8413 probability
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z > (xbar-mean(/sigma/4=-0.016*4/0.025=-2.56 and z> -2.56 is 0.9948 probability
One might want to compute the probability that a sample of 16 would have a value of 1.994 or below, which is 0.0052 or very unlikely.