1. Math
  2. Statistics And Probability
  3. a polymer is manufactured in a batch chemical process viscosity...

Question: a polymer is manufactured in a batch chemical process viscosity...

Question details

A polymer is manufactured in a batch chemical process. Viscosity measurements show that it is approximately normally distributed with a standard deviation of σ = 20. A random sample of 42 batches has a mean viscosity, x-bar = 759. Construct a 99% confidence interval around the true population mean viscosity.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution