A researcher reduces her level of confidence from 99% to 90%.What will happen to the precision of her estimate?
A) The estimate will be more precise.
B) The estimate will be less precise.
C) The precision of her estimate will not change.
D) It depends on the size of the population.

Question

Quizplus · Accepted Answer

Reducing the level of confidence from 99% to 90% results in a narrower confidence interval, making the estimate more precise. This is because a lower confidence level means accepting a higher risk of error, which allows for a more specific range of values.

A Researcher Reduces Her Level of Confidence from 99% to 90%.What