Bolts Random samples of 200 bolts manufacturedby a type A machine and 200 bolts
Chapter 9, Problem 63(choose chapter or problem)
Bolts Random samples of 200 bolts manufacturedby a type A machine and 200 bolts manufactured by a type B machine showed 16 and 8 defective bolts,respectively. Do these data present sufficient evidenceto suggest a difference in the performance of themachine types? Use a .05.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer