The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is requested to send three employees who have positive indications of asbestos to a medical center for further testing. Suppose 40% of the employees have positive indications of asbestos in their lungs. We determined that the mean and variance of the costs necessary to find three employees with positive indications of asbestos poisoning were $150 and 4,500, respectively. Do you think it is highly unlikely that the cost of completing the tests will exceed $390