A hole - punch machine is set to punch a hole 1.84 centimeters in diameter in a
Question:
A hole - punch machine is set to punch a hole 1.84 centimeters in diameter in a strip of sheet metal in a manufacturing process . The strip of metal is then creased and sent on to the next phase of production , where a metal rod is slipped through the hole . It is important that the hole be punched to the specified diameter of 1.84 cm . To test punching accuracy , technicians have randomly sampled 12 punched holes and measured the diameters . The data in centimeters ) follow . Use an alpha of .10 to determine whether the holes are being punched an average of L.84 centimeters , Assume the punched holes are normally distributed in the population . 1.81 1.89 1.86 1.83 1.85 1.82 1.87 1.85 1.84 1.86 1.88 1.85
![image text in transcribed](https://s3.amazonaws.com/si.experts.images/answers/2024/07/66911f080ac0c_69566911f07dc74d.jpg)
Fundamental Accounting Principles
ISBN: 978-0077862275
22nd edition
Authors: John Wild, Ken Shaw, Barbara Chiappetta