sampling distributions: A factory produces plate glass with

[doghouse]

A factory produces plate glass with a mean thickness of 4 mm and a standard deviation of 1.1 mm. A simple random sample of 100 sheets of glass is to be measured, and the mean thickness of the 100 sheets is to be computed. What is the probability that the average thickness of the 100 sheets is less than 4.1 mm?

 

[galactus]

\(\displaystyle \L\\z=\frac{(x-{\mu})\sqrt{n}}{\sigma}\)