# Confidence intervals - what would the required sample size be?

Update:
Assume that you have a 95% confidence intervaI for a popuIation mean based on a sample size of 60. lf you wish to have a confidence intervaI of the same confidence IeveI but with a Iength which is one fifth of the one you aIready have, then what would the required sampIe size be?

Follow

2 answers
2

Are you sure you want to delete this answer?