Answer to Question #237696 in Statistics and Probability for Diana ash

Question

Assume that we are estimating the population mean with confidence level 1-a when the population standard deviation is known.if confidence level is increased then the error of estimation will decrease.true or false?

Answer 1

True.

Population mean $\bar{X}$ with (1-a) confidence level when the population sd is known. If the confidence level is increased then the error of estimation will decrease.