8. You want to know if an employee's opinion about an organization is the

same as the opinion of that employee's boss. You collect data from 18 employee-supervisor pairs and code the difference scores so that positive scores indicate that the employee has a higher opinion and negative scores indicate that the boss has a higher opinion (meaning that difference scores of 0 indicate no difference and agreement). You find that the mean difference score is ?d = -3.15 with a standard deviation of sD = 1.97. Test

this hypothesis at the = 0.01 level.