Gen administers (a standardised measure of IQ) on five randomly selected students, and obtains a sample mean of 108 and a standard deviation of 12.5 on those students' IQ scores.Harry administers the WAIS on another five randomly selected students from the samestudent population, and obtains a mean of 130 and a standard deviation of 19.8 for his sample.Chris administers the WAIS on every enrolled student, and obtains a mean of 100 and a standard deviation of 15.

what statistic needs to be used in order to apply findings to distribution of IQ scores for student population basing the answer around sampling distribution