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Aproduction 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

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table

How many 3/8s are in 6 plz someone tell me now