A certainty factor of 1.960 is used for ____ percent desired certainty.
A)75
B)95
C)96
D)99

Question

Quizplus · Accepted Answer

The certainty factor of 1.960 corresponds to a desired certainty of 95%. This can be verified using a standard normal distribution table, where the area under the curve to the left of 1.960 is approximately 0.975, meaning there is a 97.5% chance of being within 1.960 standard deviations of the mean. Therefore, the answer is B) 95.

A Certainty Factor of 1