posted by Anonymous .
Here are 6 measurements of the electrical conductivity of a iron rod:
The iron rod is supposed to have conductivity 10.1.
Do the measurements give good evidence that the true conductivity is not 10.1?
The 6 measurements are an SRS from the population of all results we would get if we kept measuring conductivity forever.
This population has a Normal distribution with mean equal to the true conductivity of the iron rod and standard deviation 0.1