Solve the Problem. -A Researcher Wishes to Construct a 95% Confidence Interval for Confidence

Multiple Choice

Solve the problem.
-A researcher wishes to construct a 95% confidence interval for a population mean. She selects a simple random sample of size n = 20 from the population. The population is normally distributed and is unknown. When constructing the confidence interval, the researcher should use the t distribution; however, she incorrectly uses the normal distribution. Will the true confidence level of the resulting confidence interval be greater than 95%, smaller than 95%, or exactly 95%?

A) Greater than 95%
B) Exactly 95%
C) Smaller than 95%