You run an experiment to see if first graders with Autism report different levels of school enjoyment than their peers. You create a school enjoyment scale (1-10,10 - Really, really enjoys school), Your first graders with Autism have a mean value of 4.56. Your control group
of first graders report a mean of 8.00 with a standard deviation of 3 21. Calculate the Z-score that will allow you to test your hypothesis
rounded out two decimal places