Assign 9 1 PLEASE SHOW ALL WORK A study of commuting times r

Assign. 9 #1 PLEASE SHOW ALL WORK

A study of commuting times reports the travel times to work of a random sample of 986 employed adults. The mean is X = 49.9 minutes and the standard deviation is s = 63.8 minutes. What is the standard error of the mean? (Round your answer to four decimal places.) min eBook

Solution

Note that

standard error of the mean = s / sqrt(n)

Thus,

standard error of the mean = s / sqrt(n) = 63.8 / sqrt(986)

= 2.031805919 [ANSWER]