183k views
4 votes
A machine produces metal pieces that are cylindrical in shape. A sample of pieces is taken, and the diameters are found to be 1.01, .97, 1.03, 1.04, .99, .98, .99, 1.01, and 1.03 centimeters. Find a 99% confidence interval for the mean diameter of pieces from this machine, assuming an approximate normal distribution. Interpret the interval carefully in the context of the problem

User Abdiel
by
6.3k points

1 Answer

5 votes
The Answer is on the bottom of the photo.
A machine produces metal pieces that are cylindrical in shape. A sample of pieces-example-1
User Aliry
by
6.9k points