Question

Identify the margin of error.A.Critical value × Standard errorB.Statistic × Standard errorC.Critical value × StatisticD.Statistic + Standard error

Answer 1

When we are calculating a confidence interval, we can express the margin of rror as:

$MOE=z\cdot\sigma_M$

where z is the critical value for the significance level chosen and σM is the standard error (NOTE: it can be expressed with different symbols).

Then, from the options, the margin of error is equal to the critical value times the standard error [Option A].