If the accidental error is estimated to be 0006 ft for each

If the accidental error is estimated to be 0.006 ft for each of 24 separate distance measurements, what is the standard error of the sum of these measurements?

Solution

The standard error of the sum of variables is

standard error of sum = se sqrt(n)

where se = the accidental error of 1 measurement

Thus,

standard error of sum = 0.006 * sqrt(24) = 0.029393877 [ANSWER]