A manufacturer of flea collars for animals injects the collars with 15 milligrams of a medicine that only acts on fleas. The manufacturer will only sell collars with 14 milligrams and no more than 16 milligrams of medicine. The following list shows the result of sampling 36 collars from an actual production run of 720 collars.
17, 14, 14, 16, 14, 15, 15, 15, 16, 14, 16, 14, 15, 15, 15, 16, 13, 13
13, 13, 13, 14, 14, 13, 17, 14, 15, 13, 14, 15, 16, 17, 14, 17, 14, 15
A) Based on this sample, what percent of the collars would be acceptable? Explain how you got your answer.
B) Based on this sample, how many collars would you expect the manufacturer to reject?
how many fit the requirements? Divide by 36.
multiply that fraction by 720 to find how many you expect to pass.
Now subtract that from 720 to see how many fail