subject
Mathematics, 19.07.2019 17:30 ahorseman

Good treads and speed tracks manufacture tires. good treads claims that their tires last longer than speed tracks tires. a car company decided to test good tread's claim. they purchased 20 sets of good tread's tires and 20 sets of speed track's tires. they tested the lifetime of each tire by simulating 1,000 miles of driving conditions for each set of tires each day. at the end of each day, they measured the tread on each of the tires. once the tire tread drops below minimum safe tread depth, the tire is considered to have passed its lifetime. after observing the lifetime of each tire, the car company reported that the average lifetime of a good treads tire is 55,000 miles and the average lifetime of a speed tracks tire is 65,000 miles. given the car company's report, what conclusion can be made regarding the average lifetime of good treads and speed tracks tires? there is not enough information to make any conclusions from the car company's report. good treads' claim is false; therefore, it can be concluded that speed tracks tires last longer than good treads tires. good treads' claim is false; therefore, it can be concluded that good treads tires last longer than speed tracks tires. good treads' claim is true; therefore, it can be concluded that good treads tires last longer than speed tracks tires.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 17:00
What is the definition of exponential decay?
Answers: 3
question
Mathematics, 21.06.2019 18:00
Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer
Answers: 1
question
Mathematics, 21.06.2019 18:30
What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?
Answers: 1
question
Mathematics, 21.06.2019 20:30
Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park what is the unit rate and what does it represent in the context of the situation?
Answers: 2
You know the right answer?
Good treads and speed tracks manufacture tires. good treads claims that their tires last longer than...
Questions
question
Mathematics, 15.12.2020 21:40
question
Mathematics, 15.12.2020 21:40
question
Mathematics, 15.12.2020 21:40
Questions on the website: 13722363