A methods and measurement analyst wants to develop a time standard for a certain task. In a preliminary study, he observed one worker perform the task six times with an average observed time of 20 seconds and a standard deviation of 2 seconds. What is the normal time for this task if the employee worked at a 20 percent faster pace than average? Multiple Choice 100 seconds 24 seconds 4 seconds 20 seconds Multiple Choice 100 seconds 24 seconds 4 seconds 20 seconds 16.7 seconds