Assuming the sample mean and standard deviation are the same for different combinations of levels of confidence and sample size, as the sample size ______, the level of confidence has ______ impact on the width of the confidence interval.

A) decreases; the same
B) decreases; less
C) increases; more
D) increases; less

Sample Size

The number of observations or data points collected in a sample from a population for the purpose of statistical analysis.

Confidence Interval

A range of values, derived from sample data, that likely contain the population parameter with a certain level of confidence.

Level of Confidence

The degree of certainty or probability that the results of statistical analysis are reliable and not due to random chance.