A researcher increases his level of confidence from 90% to 95%.What will happen to the precision of his estimate?
A) The estimate will be more precise.
B) The estimate will be less precise.
C) The precision of his estimate will not change.
D) It depends on the size of the population.

Question

Quizplus · Accepted Answer

Increasing the level of confidence generally requires widening the confidence interval, which makes the estimate less precise.

A Researcher Increases His Level of Confidence from 90% to 95%.What