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

question 93

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%

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