A researcher developing scanners to search for hidden weapons at airports has concluded that a new scanner is significantly better than the current scanner. He made his decision based on a test using = 0.05. Would he have made the same decision at a = 0.20? How about a = 0.001? Explain. Select the statement relating decision making to values of a. OA. His decision would have been the same for a = 0.001 but may have been different for a = 0.20. OB. His decision would have been the same for a = 0.20 but may have been different for a = 0.001. OC. His decision would have been the same for both a = 0.001 and a = 0.20. OD. His decision may have been different for both a = 0.001 and a = 0.20.