Hi guys tomorrow I have a maths exam and I really need u guys help in it. please help me. the exam will, take place tomorrow 8:30 am dubai time. please be available and help me. the questions will be from class 6. and I need the answers with full workings. thank u​

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