Last weekend, 5% of the tickets sold at seaworld were discount tickets. if seaworld sold 60 tickets in all, how many dicount tickets did it sell? use the percent proportion.

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