A man bought some shirts for G72000 If each shirt
was too oo Theaper, we would have received 4 more
Shirts - Calculate the number of Shirts bought

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