Suppose an experiment is designed to test the durability of batteries in different conditions. All of the batteries tested are double-A (AA) Brand X. All sets of batteries are preconditioned in differ 1

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Suppose an examination is adapted to examination the durability of batteries in unanalogous stipulations. All of the batteries examinationed are double-A (AA) Brand X. All sets of batteries are preconditioned in unanalogous environmental stipulations for accurately 168 hours (1 week).

Set 1: 0°C (freezing aim of water)Set 2: 24°C (closely margin latitude)Set 3: 37°C (closely collectiveness latitude)

The batteries are then once used to strength selfsame unreflective drummer toys. As desire as the toy keeps drumming the battery is considered administrative. The drumming age for each toy is measured as an token of battery durability.

In this examination, which condition is not controlled?

temperaturebrand of batteriesexamination for durabilitytype of battery (battery bulk)

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