jacob and michael are going to run a 1 mile race . jacob can run 2,652 yards in 15 minutes and michael can run 7,920 feet in 0.375 hours . use unit rates to determine who will win the race

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