Practical speed of this reaction are discussing about the influence of color and the error rate of the reaction speed of the operator, in this case done by observing three different light colours of red, yellow, Green has been turned on and turned off by the operator by pressing the button rapidly. After doing these experiments, then the next he did calculations either manually or using ANOVA to determine program or no influence between color lights with this level of error that happened to pace reaction by each operator. Based on the analysis that has been done by the operator total time and average time was fastest at the time of switching off lights is yellow. Hypothesis testing is done based on the ANOVA test data, color and effect on the operator's error rate 1 or 2 carriers.
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