Question: 1. A measure of dopamine (a neurotransmitter) activity is available for 14 acute schizophrenic patients and 14 chronic schizophrenic patients. Do acute and chronic schizophrenics differ in dopamine activity?
2. A large school district needs to know the range of scores within which they can expect the mean reading achievement score of their sixth-grade students. A random sample of 50 reading achievement scores is available.