A study of commuting times reports the travel times to work

A study of commuting times reports the travel times to work of a random sample of 1094 employed adults in Chicago. The mean is x = 59.0 minutes and the standard deviation is s = 60.9 minutes. What is the standard error of the mean? (Round your answer to four decimal places.)

____________min

Solution

Standard Error= sd/ Sqrt(n)
Where,
sd = Standard Deviation
n = Sample Size

Standard deviation( sd )=60.9
Sample Size(n)=1094
Standard Error = ( 60.9/ Sqrt ( 1094) )
= 1.8412 min