Which answers are correct?

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

The amount of energy it takes to lift a box might be a function of which of the following

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