Authors

• Abdolreza Bazargan-Lari
• Aliakbar Jafari

Abstract

For the power of two-sided hypothesis testing about the mean of a normal population, we derive a 100(1 − alpha)% confidence interval. Then by using a numerical method we will find a shortest confidence interval and consider some special cases.

Keywords

• Confidence interval
• MLE
• power of the test
• twosided Student’s t-test