Please help I need these answer as soon as possible!

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

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

5. (03.02)if g(x) = x2 + 3, find g(4). (2 points)1619811