If all other factors are held constant,increasing the level of confidence will have what kind of effect on the width of a confidence interval?
A)Increase it
B)Decrease it
C)Increase it or decrease it depending on whether is positive or negative
D)Have no effect on it

Question

If all other factors are held constant,increasing the level of confidence will have what kind of effect on the width of a confidence interval?
A)Increase it 
B)Decrease it 
C)Increase it or decrease it depending on whether is positive or negative 
D)Have no effect on it

Quizplus · Accepted Answer

Increasing the level of confidence will result in a wider confidence interval because the increased level of confidence requires a higher level of certainty, which in turn requires a greater range of possible values to be encompassed within the interval.

If All Other Factors Are Held Constant,increasing the Level of Confidence