Measurements Should Be Analyzed to Determine Their Precision

Multiple Choice

Measurements should be analyzed to determine their precision. The precision of measurements is affected by confidence intervals. Using the statistical definition of the 95 percent confidence interval, if a poll of 100 people were taken _________________?

A) Five percent of respondents would be within the calculated confidence intervals and 95 percent would be either higher or lower than the range of the confidence intervals.
B) 95 percent of respondents would be within the calculated confidence intervals and only one percent would be higher than the range of the confidence intervals.
C) 95 percent of respondents would be within the calculated confidence intervals and ten percent would be lower than the range of the confidence intervals.
D) 95 percent of respondents would be within the calculated confidence intervals and five percent would be either higher or lower than the range of the confidence intervals.