As the standard deviation (σ)decreases,the width of the confidence interval _______________.
A)Stays the same
B)Decreases
C)Increases

Name: As the standard deviation (σ)decreases,the width of the confidence interval _______________. A)Stays the same B)Decreases C)Increases
Brand: Quizplus
Rating: 4.9 (37 reviews)

Question

Quizplus · Accepted Answer

The width of the confidence interval is directly proportional to the standard deviation. If the standard deviation decreases, the width of the confidence interval will also decrease. Therefore, the best choice is B.

As the Standard Deviation (σ)Decreases,the Width of the Confidence Interval