Josh and sam each have a board to cut. the boards are the same size and are in the shape of a rectangle. josh cuts his board in halves and uses one half of the board. sam cuts his board in fourths and uses two fourths of the board. do both boys use the same amount of their boards?

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