1. The 
% confidence interval of the mean 
of a normally distributed population is ![[106.16; 109.84]](https://4mules.nl/wp-content/ql-cache/quicklatex.com-cd9860945d61b79f78b63c30fc8d99c6_l3.png "Rendered by QuickLaTeX.com")
. The population standard deviation 
is given and equals 
. What has been the sample size?
2.
Mathemetics and Statistics explained - examples - solutions
1. The % confidence interval of the mean of a normally distributed population is . The population standard deviation is given and equals . What has been the sample size?
2.
