Confidence intervals around sample means or proportions are estimated using the ________.
A) standard error formula
B) variance formula
C) standard deviation formula
D) confidence interval formula
E) reflexive value equation

Question

Quizplus · Accepted Answer

Confidence intervals around sample means or proportions are estimated using the standard error formula. Standard error measures the variability of the sample mean or proportion and takes into account sample size and sample variance. Using this formula, we can calculate the margin of error and construct a confidence interval around the sample statistic.

Confidence Intervals Around Sample Means or Proportions Are Estimated Using