I did an experiment on writing time in math statistics. How much time does it take to write one work in a second using the dominant hand and nondominant hand for comparison? The coin was tossed to determine which hand to write it with first. What type of experiment is this? What is the reason for throwing a coin to decide which hand is measured first? Besides hand dominance what factors can influence the outcomes of the participant's writing times? How are there factors controlled? if they are not controlled, how you control these factors? Be specific in how you might improve the design of the experimen