A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the



A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i.e., of the population) is 0.22 ounces. The standard error of the mean equals:______.
a. 4.000
b. .0200
c. .0331
d. .3636




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