Student intelligence


Suppose you're consulting for a school district, and the head of the school district thinks the students have above average intelligence. A random sample of thirty students have a mean IQ score of 112. Is there sufficient evidence to support the head's claim? You can assume the mean IQ score across the population of all students (e.g. including students outside the head's school district) is 100, with a standard deviation of 15.


Access restricted

Subscribe to premium account to see the solution.

Get premium now