A common measure of intelligence is the intelligence quotient (IQ) in which scores in the general healthy population are approximately normally distributed with 125 12 ( ). Suppose we select a sample of 110 graduate students to identify if the IQ of those students is significantly smaller than that of the general healthy adult population. In this sample, we record a sample mean equal to 118 (M = 118). Compute the one-sample z test to decide whether to retain or reject the null hypothesis at a .05 level of significance ( = .05)