Dr. DeVries is interested in whether or not school children in Amsterdam are brighter than the national average using a significance level=.05. What conclusion should he draw given the following information: population mean=100, population standard deviation=15, sample size=25, and sample mean=107.3.

• Children in Amsterdam are not as bright as the national average.
• Children in Amsterdam are brighter than the national average.
• The intelligence of children in Amsterdam is equal to the national average.
• There is no evidence to indicate that the intelligence of children in Amsterdam is different from the national average.
• More data needs to be collected before any conclusion can be drawn.