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To determine the number of judges needed in descriptive tests four parameters are necessary: the probability of type I error (α), the probability of type II error (β), the difference in averages which is sought in the experiment (d’) and standard deviation of the experimental error (s). Probabilities of the experimental errors and the difference that one desires to detect between means should be stipulated...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.