We are going to build a field trial where we are going to place three technologies. We pretend to compare their performances for choosing one. In this case: Â· Each technology has a set of equipments placed in a home. Â· In this experience we have three technologies in the field (for example 10 of A technology, 10 of B technology and 10 of C technology) Â· We expected to have 0 to 20% of small fails and 0 to 10% of strong fails in average. Â· We are going to choose the technology that have less fails. -How big the field trial should be? -20 of A, 20 of B and 20 of C technology houseÂs (60 houses) equipment are enough if the worse technology has 12%, the second have 7% and the thirth have 3% of fails considering a good level of significance? -What level of significance we have?
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