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A production manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. She then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Respuesta :

This is an example of Probability based inference.

Statistical inference is the process of using data analysis to deduce properties of an underlying probability distribution.

Inferential statistics makes inferences and predictions about a population based on a sample of data taken from the population in question.

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