The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed,with mean of 3.2 pounds and standard deviation of 0.8 pound.If a sample of 16 fish is taken,what would the standard error of the mean weight equal?
A)0.003
B)0.050
C)0.200
D)0.800

Question

Quizplus · Accepted Answer

The formula for standard error of the mean is standard deviation divided by the square root of the sample size. So, in this case, the standard error of the mean would be 0.8/sqrt(16) which simplifies to 0.8/4 = 0.2, which is choice C.

The Owner of a Fish Market Has an Assistant Who