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

Question

Quizplus · Accepted Answer

The standard error of the mean (SEM) is calculated by dividing the standard deviation by the square root of the sample size: SEM = 0.8 / sqrt(16) = 0.8 / 4 = 0.200.

The Owner of a Fish Market Has an Assistant Who