For a Given Sample Size and Population Standard Deviation,which of the Following

Multiple Choice

For a given sample size and population standard deviation,which of the following is true in the interval estimation of the population mean?

A) If the confidence level is greater,the interval is wider.
B) If the confidence level is smaller,the interval is wider.
C) If the confidence level is greater,the interval is narrower.
D) No answer choices are correct.